diff --git a/ext/v8/external.h b/ext/v8/external.h
index 5a26e14..b9defb2 100644
--- a/ext/v8/external.h
+++ b/ext/v8/external.h
@@ -3,7 +3,7 @@
 #define EXTERNAL_H
 
 namespace rr {
-  class External : Ref<v8::External> {
+  class External : public Ref<v8::External> {
   public:
 
     static void Init();
@@ -13,6 +13,8 @@ namespace rr {
     inline External(VALUE value) : Ref<v8::External>(value) {}
     inline External(v8::Isolate* isolate, v8::Handle<v8::External> handle) :
       Ref<v8::External>(isolate, handle) {}
+    inline External(v8::Isolate* isolate, v8::Handle<v8::Value> value) :
+      External(isolate, v8::Handle<v8::External>::Cast<v8::Value>(value)) {}
 
     struct Container {
       Container(VALUE v) : object(v) {}
diff --git a/ext/v8/ref.h b/ext/v8/ref.h
index d58dd8c..deaf008 100644
--- a/ext/v8/ref.h
+++ b/ext/v8/ref.h
@@ -97,7 +97,7 @@ namespace rr {
         isolate(isolate), cell(new v8::Persistent<T>(isolate, handle)) {}
 
       virtual ~Holder() {
-        Isolate(isolate).scheduleDelete<T>(cell);
+        Isolate(isolate).scheduleReleaseObject<T>(cell);
       }
 
       v8::Isolate* isolate;
diff --git a/ext/v8/value.cc b/ext/v8/value.cc
index 02b4119..aa2df9d 100644
--- a/ext/v8/value.cc
+++ b/ext/v8/value.cc
@@ -166,10 +166,9 @@ namespace rr {
       return Qfalse;
     }
 
-    // TODO
-    // if (handle->IsExternal()) {
-    //   return External((v8::Handle<v8::External>)v8::External::Cast(*handle));
-    // }
+    if (handle->IsExternal()) {
+      return External(isolate, handle);
+    }
 
     if (handle->IsUint32()) {
       return UInt32(handle->Uint32Value());