diff --git a/lib/transforms/at-current-range.js b/lib/transforms/at-current-range.js
index 86f28f212..47aa7118c 100644
--- a/lib/transforms/at-current-range.js
+++ b/lib/transforms/at-current-range.js
@@ -300,11 +300,11 @@ export function insertFragment(transform, fragment) {
 
   // Determine what the selection should be after inserting.
   const keys = beforeTexts.map(text => text.key)
-  const text = document.getTexts().findLast(n => !keys.includes(n.key))
-  const previousText = text ? document.getPreviousText(text) : null
+  const news = document.getTexts().filter(n => !keys.includes(n.key))
+  const text = news.size ? news.takeLast(2).first() : null
 
-  if (text && lastInline && previousText) {
-    after = selection.collapseToEndOf(previousText)
+  if (text && lastInline) {
+    after = selection.collapseToEndOf(text)
   }
 
   else if (text && lastInline) {
diff --git a/lib/transforms/at-range.js b/lib/transforms/at-range.js
index 25569455a..2f0aeb569 100644
--- a/lib/transforms/at-range.js
+++ b/lib/transforms/at-range.js
@@ -49,105 +49,51 @@ export function addMarkAtRange(transform, range, mark) {
  */
 
 export function deleteAtRange(transform, range) {
-  // if (range.isCollapsed) return transform
+  if (range.isCollapsed) return transform
 
-  // const { state } = transform
-  // const { document } = state
-  // const { startKey, startOffset, endKey, endOffset } = range
-  // const startText = document.assertDescendant(startKey)
-  // const endText = document.assertDescendant(endKey)
+  const { startKey, startOffset, endKey, endOffset } = range
 
-  // if (startKey == endKey) {
-  //   const index = startOffset
-  //   const length = endOffset - startOffset
-  //   return transform.removeTextByKey(startKey, index, length)
-  // }
+  if (startKey == endKey) {
+    const index = startOffset
+    const length = endOffset - startOffset
+    return transform.removeTextByKey(startKey, index, length)
+  }
 
   let { state } = transform
   let { document } = state
-
-  // If the range is collapsed, there's nothing to delete.
-  if (range.isCollapsed) return transform
-
-  // Make sure the children exist.
-  const { startKey, startOffset, endKey, endOffset } = range
-  document.assertDescendant(startKey)
-  document.assertDescendant(endKey)
-
-  // If the start and end nodes are the same, just remove characters.
-  if (startKey == endKey) {
-    let text = document.getDescendant(startKey)
-    text = text.removeText(startOffset, endOffset - startOffset)
-    document = document.updateDescendant(text)
-    document = document.normalize()
-    state = state.merge({ document })
-    transform.state = state
-    return transform
-  }
-
-  // Split the blocks and determine the edge boundaries.
-  const start = range.collapseToStart()
-  const end = range.collapseToEnd()
-  let startBlock = document.getClosestBlock(startKey)
-  let endBlock = document.getClosestBlock(endKey)
-  const startDepth = document.getDepth(startBlock)
-  const endDepth = document.getDepth(endBlock)
-
   let ancestor = document.getCommonAncestor(startKey, endKey)
-  let isAncestor = ancestor == document
-  const ancestorDepth = isAncestor ? 0 : document.getDepth(ancestor)
+  const startChild = ancestor.getHighestChild(startKey)
+  const endChild = ancestor.getHighestChild(endKey)
+  const startOff = startChild.getOffset(startKey) + startOffset
+  const endOff = endChild.getOffset(endKey) + endOffset
+
+  transform.splitNodeByKey(startChild.key, startOff)
+  transform.splitNodeByKey(endChild.key, endOff)
 
-  transform = splitBlockAtRange(transform, start, startDepth - ancestorDepth)
-  transform = splitBlockAtRange(transform, end, endDepth - ancestorDepth)
   state = transform.state
   document = state.document
   ancestor = document.getCommonAncestor(startKey, endKey)
 
-  const startText = ancestor.getDescendant(startKey)
-  const startEdgeText = ancestor.getNextText(startKey)
+  const startBlock = document.getClosestBlock(startKey)
+  const endBlock = document.getClosestBlock(document.getNextText(endKey))
+  const startIndex = ancestor.nodes.indexOf(startBlock)
+  const endIndex = ancestor.nodes.indexOf(endBlock)
+  const endLonelyParent = ancestor.getHighestChild(endBlock, (parent) => {
+    return parent.nodes.size == 1
+  })
 
-  const endText = ancestor.getNextText(endKey)
-  const endEdgeText = ancestor.getDescendant(endKey)
+  ancestor.nodes.slice(startIndex + 1, endIndex).forEach((child) => {
+    transform.removeNodeByKey(child.key)
+  })
 
-  startBlock = document.getClosestBlock(startText)
-  endBlock = document.getClosestBlock(endText)
+  endBlock.nodes.forEach((child, i) => {
+    const newKey = startBlock.key
+    const newIndex = startBlock.nodes.size + i
+    transform.moveNodeByKey(child.key, newKey, newIndex)
+  })
 
-  // Remove the new blocks inside the edges.
-  const startEdgeBlock = ancestor.getFurthestBlock(startEdgeText)
-  const endEdgeBlock = ancestor.getFurthestBlock(endEdgeText)
-
-  const nodes = ancestor.nodes
-    .takeUntil(n => n == startEdgeBlock)
-    .concat(ancestor.nodes.skipUntil(n => n == endEdgeBlock).rest())
-
-  ancestor = ancestor.merge({ nodes })
-
-  // Take the end edge's inline nodes and move them to the start edge.
-  const startNodes = startBlock.nodes.concat(endBlock.nodes)
-  startBlock = startBlock.merge({ nodes: startNodes })
-  ancestor = ancestor.updateDescendant(startBlock)
-
-  // While the end child is an only child, remove the block it's in.
-  let endParent = ancestor.getClosestBlock(endBlock)
-
-  while (endParent && endParent.nodes.size == 1) {
-    endBlock = endParent
-    endParent = ancestor.getClosestBlock(endParent)
-  }
-
-  ancestor = ancestor.removeDescendant(endBlock)
-
-  // Update the document.
-  document = isAncestor
-    ? ancestor
-    : document.updateDescendant(ancestor)
-
-  // Normalize the adjacent text nodes.
-  document = document.normalize()
-
-  // Update the state.
-  state = state.merge({ document })
-  transform.state = state
+  transform.removeNodeByKey(endLonelyParent.key)
+  transform.normalizeDocument()
   return transform
 }
 
@@ -325,107 +271,76 @@ export function insertBlockAtRange(transform, range, block) {
  */
 
 export function insertFragmentAtRange(transform, range, fragment) {
-  let { state } = transform
-  let { document } = state
-
-  // Ensure that the selection is normalized.
-  range = range.normalize(document)
-
-  // If the range is expanded, delete first.
   if (range.isExpanded) {
-    transform = deleteAtRange(transform, range)
-    state = transform.state
-    document = state.document
+    transform.deleteAtRange(range)
     range = range.collapseToStart()
   }
 
-  // If the fragment is empty, do nothing.
   if (!fragment.length) return transform
 
-  // Make sure each node in the fragment has a unique key.
   fragment = fragment.mapDescendants(child => child.set('key', uid()))
 
-  // Split the inlines if need be.
-  if (!document.isInlineSplitAtRange(range)) {
-    transform = splitInlineAtRange(transform, range)
-    state = transform.state
-    document = state.document
-  }
+  const { startKey, startOffset } = range
+  let { state } = transform
+  let { document } = state
+  let startText = document.getDescendant(startKey)
+  let startBlock = document.getClosestBlock(startText)
+  let startChild = startBlock.getHighestChild(startText)
+  const parent = document.getParent(startBlock)
+  const index = parent.nodes.indexOf(startBlock)
+  const offset = startChild == startText
+    ? startOffset
+    : startChild.getOffset(startText) + startOffset
 
-  // Determine the start and next children to insert into.
-  const { startKey, endKey } = range
-  let block = document.getClosestBlock(startKey)
-  let start = document.getDescendant(startKey)
-  let startChild
-  let nextChild
-
-  if (range.isAtStartOf(document)) {
-    nextChild = document.getClosestBlock(document.getTexts().first())
-  }
-
-  if (range.isAtStartOf(block)) {
-    nextChild = block.getHighestChild(block.getTexts().first())
-  }
-
-  else if (range.isAtStartOf(start)) {
-    startChild = block.getHighestChild(block.getPreviousText(start))
-    nextChild = block.getNextSibling(startChild)
-  }
-
-  else {
-    startChild = block.getHighestChild(start)
-    nextChild = block.getNextSibling(startChild)
-  }
-
-  // Get the first and last block of the fragment.
   const blocks = fragment.getBlocks()
   const firstBlock = blocks.first()
-  let lastBlock = blocks.last()
+  const lastBlock = blocks.last()
 
-  // If the block is empty, merge in the first block's type and data.
-  if (block.length == 0) {
-    block = block.merge({
-      type: firstBlock.type,
-      data: firstBlock.data
+  if (firstBlock != lastBlock) {
+    const lonelyParent = fragment.getFurthest(firstBlock, p => p.nodes.size == 1)
+    const lonelyChild = lonelyParent || firstBlock
+    const startIndex = parent.nodes.indexOf(startBlock)
+    fragment = fragment.removeDescendant(lonelyChild)
+
+    fragment.nodes.forEach((node, i) => {
+      const newIndex = startIndex + i + 2
+      transform.insertNodeByKey(parent.key, newIndex, node)
     })
   }
 
-  // Insert the first blocks nodes into the starting block.
-  if (startChild) {
-    block = block.insertChildrenAfter(startChild, firstBlock.nodes)
+  transform.splitNodeByKey(startChild.key, offset)
+
+  state = transform.state
+  document = state.document
+  startText = document.getDescendant(startKey)
+  startBlock = document.getClosestBlock(startKey)
+  startChild = startBlock.getHighestChild(startText)
+
+  if (firstBlock != lastBlock) {
+    const nextChild = startBlock.getNextSibling(startChild)
+    const nextNodes = startBlock.nodes.skipUntil(n => n == nextChild)
+    const lastIndex = lastBlock.nodes.size
+
+    nextNodes.forEach((node, i) => {
+      const newIndex = lastIndex + i + 1
+      transform.moveNodeByKey(node.key, lastBlock.key, newIndex)
+    })
+  }
+
+  if (startBlock.isEmpty) {
+    transform.removeNodeByKey(startBlock.key)
+    transform.insertNodeByKey(parent.key, index, firstBlock)
   } else {
-    block = block.insertChildrenBefore(nextChild, firstBlock.nodes)
+    const inlineChild = startBlock.getHighestChild(startText)
+    const inlineIndex = startBlock.nodes.indexOf(inlineChild)
+
+    firstBlock.nodes.forEach((inline, i) => {
+      const newIndex = inlineIndex + i + 1
+      transform.insertNodeByKey(startBlock.key, newIndex, inline)
+    })
   }
 
-  document = document.updateDescendant(block)
-
-  // If there are no other siblings, that's it.
-  if (firstBlock == lastBlock) {
-    document = document.normalize()
-    state = state.merge({ document })
-    transform.state = state
-    return transform
-  }
-
-  // Otherwise, remove the fragment's first block's highest solo parent...
-  let highestParent = fragment.getHighestOnlyChildParent(firstBlock)
-  fragment = fragment.removeDescendant(highestParent || firstBlock)
-
-  // Then, add the inlines after the cursor from the current block to the
-  // start of the last block in the fragment.
-  if (nextChild) {
-    lastBlock = lastBlock.concatChildren(block.getChildrenAfterIncluding(nextChild))
-    fragment = fragment.updateDescendant(lastBlock)
-
-    block = block.removeChildrenAfterIncluding(nextChild)
-    document = document.updateDescendant(block)
-  }
-
-  // Finally, add the fragment's children after the block.
-  document = document.insertChildrenAfter(block, fragment.nodes)
-  document = document.normalize()
-  state = state.merge({ document })
-  transform.state = state
+  transform.normalizeDocument()
   return transform
 }
 
diff --git a/test/transforms/fixtures/insert-fragment/middle-inline-fragment-inline/index.js b/test/transforms/fixtures/insert-fragment/middle-inline-fragment-inline/index.js
index d9d042c7f..32ebe38ed 100644
--- a/test/transforms/fixtures/insert-fragment/middle-inline-fragment-inline/index.js
+++ b/test/transforms/fixtures/insert-fragment/middle-inline-fragment-inline/index.js
@@ -27,7 +27,7 @@ export default function (state) {
     .apply()
 
   const updated = next.document.getTexts().get(1)
-
+debugger
   assert.deepEqual(
     next.selection.toJS(),
     range.merge({
diff --git a/test/transforms/fixtures/insert-fragment/middle-inline/index.js b/test/transforms/fixtures/insert-fragment/middle-inline/index.js
index d58efb45b..d9d042c7f 100644
--- a/test/transforms/fixtures/insert-fragment/middle-inline/index.js
+++ b/test/transforms/fixtures/insert-fragment/middle-inline/index.js
@@ -26,7 +26,7 @@ export default function (state) {
     .insertFragment(fragment)
     .apply()
 
-  const updated = next.document.getTexts().last()
+  const updated = next.document.getTexts().get(1)
 
   assert.deepEqual(
     next.selection.toJS(),