diff --git a/lib/index.js b/lib/index.js
index 7248b45..27b1427 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -4,6 +4,7 @@ const Obz = require('obz')
 /**
  * @typedef {ReturnType<import('ppppp-db').init>} PPPPPDB
  * @typedef {ReturnType<import('ppppp-dict').init>} PPPPPDict
+ * @typedef {ReturnType<import('ppppp-set').init>} PPPPPSet
  * @typedef {import('ppppp-db').RecPresent} RecPresent
  * @typedef {import('ppppp-db').Tangle} Tangle
  * @typedef {import('ppppp-db').Msg} Msg
@@ -63,6 +64,14 @@ function assertDictPlugin(peer) {
   if (!peer.dict) throw new Error('goals plugin requires ppppp-dict plugin')
 }
 
+/**
+ * @param {{ set: PPPPPSet | null }} peer
+ * @returns {asserts peer is { set: PPPPPSet }}
+ */
+function assertSetPlugin(peer) {
+  if (!peer.set) throw new Error('goals plugin requires ppppp-set plugin')
+}
+
 /**
  * @implements {Goal}
  */
@@ -132,7 +141,7 @@ class GoalImpl {
 }
 
 /**
- * @param {{ db: PPPPPDB | null, dict: PPPPPDict | null }} peer
+ * @param {{ db: PPPPPDB | null, dict: PPPPPDict | null, set: PPPPPSet | null }} peer
  * @param {unknown} config
  */
 function initGoals(peer, config) {
@@ -158,13 +167,17 @@ function initGoals(peer, config) {
         return [start, maxDepth]
 
       case 'all':
-      case 'set':
         return [0, maxDepth]
 
+      case 'set':
+        assertSetPlugin(peer)
+        const minSetDepth = peer.set.minRequiredDepth(goal.id)
+        return [minSetDepth, maxDepth]
+
       case 'dict':
         assertDictPlugin(peer)
-        const minDepth = peer.dict.minRequiredDepth(goal.id)
-        return [minDepth, maxDepth]
+        const minDictDepth = peer.dict.minRequiredDepth(goal.id)
+        return [minDictDepth, maxDepth]
 
       case 'none':
         return EMPTY_RANGE
@@ -258,6 +271,13 @@ function initGoals(peer, config) {
           return ['ghost', {tangleID: tangle.id, span }]
         }
       }
+      if (goalType === 'set') {
+        assertSetPlugin(peer)
+        const span = peer.set.getGhostSpan()
+        if (peer.set.isGhostable(msgID, tangle.id)) {
+          return ['ghost', {tangleID: tangle.id, span }]
+        }
+      }
     }
 
     return ['none']
diff --git a/package.json b/package.json
index e50dbea..eb8541a 100644
--- a/package.json
+++ b/package.json
@@ -36,6 +36,7 @@
     "ppppp-dict": "github:staltz/ppppp-dict",
     "ppppp-caps": "github:staltz/ppppp-caps",
     "ppppp-keypair": "github:staltz/ppppp-keypair",
+    "ppppp-set": "github:staltz/ppppp-set",
     "prettier": "^2.6.2",
     "pretty-quick": "^3.1.3",
     "rimraf": "^4.4.0",