diff --git a/modules/more.py b/modules/more.py
index 062b6f7..2aeed91 100644
--- a/modules/more.py
+++ b/modules/more.py
@@ -19,6 +19,7 @@
 """Progressive display of very long messages"""
 
 import logging
+import sys
 
 from nemubot.message import Text, DirectAsk
 from nemubot.hooks import hook
@@ -134,6 +135,17 @@ class Response:
             return Text(self.get_message(maxlen),
                         server=None, to=self.receivers)
 
+    def __str__(self):
+        ret = []
+        if len(self.messages):
+            for msg in self.messages:
+                if isinstance(msg, list):
+                    ret.append(", ".join(msg))
+                else:
+                    ret.append(msg)
+        ret.append(self.nomore)
+        return "\n".join(ret)
+
     def get_message(self, maxlen):
         if self.alone and len(self.messages) > 1:
             self.alone = False
diff --git a/nemubot/message/abstract.py b/nemubot/message/abstract.py
index e308e0c..3c69c8d 100644
--- a/nemubot/message/abstract.py
+++ b/nemubot/message/abstract.py
@@ -21,7 +21,7 @@ class Abstract:
 
     """This class represents an abstract message"""
 
-    def __init__(self, server, date=None, to=None, to_response=None, frm=None):
+    def __init__(self, server=None, date=None, to=None, to_response=None, frm=None):
         """Initialize an abstract message
 
         Arguments:
@@ -59,7 +59,10 @@ class Abstract:
     @property
     def channel(self):
         # TODO: this is for legacy modules
-        return self.to_response[0]
+        if self.to_response is not None and len(self.to_response) > 0:
+            return self.to_response[0]
+        else:
+            return None
 
     @property
     def nick(self):
diff --git a/nemubot/modulecontext.py b/nemubot/modulecontext.py
index 731dfba..23ca9e4 100644
--- a/nemubot/modulecontext.py
+++ b/nemubot/modulecontext.py
@@ -67,6 +67,15 @@ class ModuleContext:
                 store = convert_legacy_store(store)
                 self.hooks.remove((store, hook))
                 return context.hooks.del_hook(hook, store)
+            def call_hook(store, msg):
+                for h in context.hooks.get_hooks(store):
+                    if h.match(msg):
+                        res = h.run(msg)
+                        if isinstance(res, list):
+                            for i in res:
+                                yield i
+                        else:
+                            yield res
             def add_event(evt, eid=None):
                 return context.add_event(evt, eid, module_src=module)
             def del_event(evt):
@@ -93,6 +102,9 @@ class ModuleContext:
             def del_hook(store, hook):
                 store = convert_legacy_store(store)
                 self.hooks.remove((store, hook))
+            def call_hook(store, msg):
+                # TODO: what can we do here?
+                return None
             def add_event(evt, eid=None):
                 return context.add_event(evt, eid, module_src=module)
             def del_event(evt):
@@ -110,6 +122,7 @@ class ModuleContext:
         self.del_event = del_event
         self.save = save
         self.send_response = send_response
+        self.call_hook = call_hook
 
 
     def unload(self):