diff --git a/app/imports/api/creature/creatureProperties/methods/index.js b/app/imports/api/creature/creatureProperties/methods/index.js
index 63e26999..72fe3da3 100644
--- a/app/imports/api/creature/creatureProperties/methods/index.js
+++ b/app/imports/api/creature/creatureProperties/methods/index.js
@@ -1,4 +1,4 @@
-import '//imports/api/creature/creatureProperties/methods/adjustQuantity.js';
+import '/imports/api/creature/creatureProperties/methods/adjustQuantity.js';
 import '/imports/api/creature/creatureProperties/methods/damagePropertiesByName.js';
 import '/imports/api/creature/creatureProperties/methods/damageProperty.js';
 import '/imports/api/creature/creatureProperties/methods/dealDamage.js';
diff --git a/app/imports/api/library/LibraryNodes.js b/app/imports/api/library/LibraryNodes.js
index a62c3c0e..eb9692fd 100644
--- a/app/imports/api/library/LibraryNodes.js
+++ b/app/imports/api/library/LibraryNodes.js
@@ -11,6 +11,7 @@ import { assertEditPermission } from '/imports/api/sharing/sharingPermissions.js
 import { softRemove } from '/imports/api/parenting/softRemove.js';
 import SoftRemovableSchema from '/imports/api/parenting/SoftRemovableSchema.js';
 import { storedIconsSchema } from '/imports/api/icons/Icons.js';
+import '/imports/api/library/methods/index.js';
 
 let LibraryNodes = new Mongo.Collection('libraryNodes');
 
@@ -79,27 +80,6 @@ const insertNode = new ValidatedMethod({
   },
 });
 
-const duplicateNode = new ValidatedMethod({
-  name: 'libraryNodes.duplicate',
-	validate: new SimpleSchema({
-    _id: {
-      type: String,
-      regEx: SimpleSchema.RegEx.Id,
-    }
-  }).validator(),
-  mixins: [RateLimiterMixin],
-  rateLimit: {
-    numRequests: 5,
-    timeInterval: 5000,
-  },
-  run({_id}) {
-    let libraryNode = LibraryNodes.findOne(_id);
-    assertNodeEditPermission(libraryNode, this.userId);
-    delete libraryNode._id;
-		return LibraryNodes.insert(libraryNode);
-  },
-})
-
 const updateLibraryNode = new ValidatedMethod({
   name: 'libraryNodes.update',
   validate({_id, path}){
@@ -195,7 +175,6 @@ export default LibraryNodes;
 export {
 	LibraryNodeSchema,
 	insertNode,
-  duplicateNode,
 	updateLibraryNode,
 	pullFromLibraryNode,
 	pushToLibraryNode,
diff --git a/app/imports/api/library/methods/duplicateLibraryNode.js b/app/imports/api/library/methods/duplicateLibraryNode.js
new file mode 100644
index 00000000..2fa6782e
--- /dev/null
+++ b/app/imports/api/library/methods/duplicateLibraryNode.js
@@ -0,0 +1,85 @@
+import { ValidatedMethod } from 'meteor/mdg:validated-method';
+import SimpleSchema from 'simpl-schema';
+import { RateLimiterMixin } from 'ddp-rate-limiter-mixin';
+import LibraryNodes from '/imports/api/library/LibraryNodes.js';
+import { assertDocEditPermission } from '/imports/api/sharing/sharingPermissions.js';
+import {
+	setLineageOfDocs,
+	renewDocIds
+} from '/imports/api/parenting/parenting.js';
+import { reorderDocs } from '/imports/api/parenting/order.js';
+
+var snackbar;
+if (Meteor.isClient){
+  snackbar = require(
+    '/imports/ui/components/snackbars/SnackbarQueue.js'
+  ).snackbar
+}
+
+const DUPLICATE_CHILDREN_LIMIT = 50;
+
+const duplicateLibraryNode = new ValidatedMethod({
+  name: 'libraryNodes.duplicate',
+	validate: new SimpleSchema({
+    _id: {
+      type: String,
+      regEx: SimpleSchema.RegEx.Id,
+    }
+  }).validator(),
+  mixins: [RateLimiterMixin],
+  rateLimit: {
+    numRequests: 5,
+    timeInterval: 5000,
+  },
+  run({_id}) {
+    let libraryNode = LibraryNodes.findOne(_id);
+    assertDocEditPermission(libraryNode, this.userId);
+    let libraryNodeId = Random.id();
+    libraryNode._id = libraryNodeId;
+
+    let nodes = LibraryNodes.find({
+			'ancestors.id': _id,
+			removed: {$ne: true},
+		}, {
+      limit: DUPLICATE_CHILDREN_LIMIT + 1,
+      sort: {order: 1},
+    }).fetch();
+
+    if (nodes.length > DUPLICATE_CHILDREN_LIMIT){
+      nodes.pop();
+      if (Meteor.isClient){
+        snackbar({
+          text: `Only the first ${DUPLICATE_CHILDREN_LIMIT} children were duplicated`,
+        });
+      }
+    }
+
+    // re-map all the ancestors
+    setLineageOfDocs({
+			docArray: nodes,
+			newAncestry : [
+        ...libraryNode.ancestors,
+        {id: libraryNodeId, collection: 'libraryNodes'}
+      ],
+			oldParent : {id: _id, collection: 'libraryNodes'},
+		});
+
+    // Give the docs new IDs without breaking internal references
+    renewDocIds({docArray: nodes});
+
+    // Order the root node
+    libraryNode.order += 0.5;
+
+		LibraryNodes.batchInsert([libraryNode, ...nodes]);
+
+    // Tree structure changed by inserts, reorder the tree
+    reorderDocs({
+      collection: LibraryNodes,
+      ancestorId: libraryNode.ancestors[0].id,
+    });
+
+    return libraryNodeId;
+  },
+});
+
+export default duplicateLibraryNode;
diff --git a/app/imports/api/library/methods/index.js b/app/imports/api/library/methods/index.js
new file mode 100644
index 00000000..771eba44
--- /dev/null
+++ b/app/imports/api/library/methods/index.js
@@ -0,0 +1 @@
+import '/imports/api/library/methods/duplicateLibraryNode.js';