diff --git a/sys/hook.h b/sys/hook.h
new file mode 100644
index 0000000..b1e655d
--- /dev/null
+++ b/sys/hook.h
@@ -0,0 +1,96 @@
+// MorgenGrauen MUDlib
+//
+// /sys/hooks.h  - Hooksystem
+//
+// $Id: hook.h 9475 2016-02-19 21:16:17Z Zesstra $
+
+#ifndef _HOOKS_H_
+#define _HOOKS_H_
+
+// global hooks
+#define H_HOOK_MOVE           1
+#define H_HOOK_DIE            2
+#define H_HOOK_DEFEND         3
+#define H_HOOK_ATTACK         4
+#define H_HOOK_HP             5
+#define H_HOOK_SP             6
+#define H_HOOK_ATTACK_MOD     7
+#define H_HOOK_ALCOHOL        8
+#define H_HOOK_FOOD           9
+#define H_HOOK_DRINK          10
+#define H_HOOK_POISON         11
+#define H_HOOK_CONSUME        12
+#define H_HOOK_TEAMROWCHANGE  13
+#define H_HOOK_INSERT         14
+#define H_HOOK_EXIT_USE       15
+
+// the possible consumer types
+#define H_HOOK_SURVEYOR       0
+#define H_HOOK_MODIFICATOR    1
+#define H_DATA_MODIFICATOR    2
+#define H_LISTENER            3
+#define H_CONSUMERCHECK(x)    ((intp(x)&& x>=0 && x<=H_LISTENER)?x:-1)
+#define H_CONSUMERNAMES       ({"surveyors","hmods","dmods","listeners"})
+
+// priorities
+#define H_HOOK_PRIORITYRANGE  3
+#define H_HOOK_LIBBASEPRIO    0
+#define H_HOOK_GUILDBASEPRIO  (H_HOOK_LIBBASEPRIO+H_HOOK_PRIORITYRANGE)
+#define H_HOOK_OTHERBASEPRIO  (H_HOOK_GUILDBASEPRIO+H_HOOK_PRIORITYRANGE)
+#define H_HOOK_PRIOCHECK(x)   ((intp(x) && x>=0 && x<H_HOOK_PRIORITYRANGE)?x:-1)
+#define H_HOOK_LIBPRIO(x)     ((H_HOOK_PRIOCHECK(x)!=-1)?(H_HOOK_LIBBASEPRIO+x):-1)
+#define H_HOOK_GUILDPRIO(x)   ((H_HOOK_PRIOCHECK(x)!=-1)?(H_HOOK_GUILDBASEPRIO+x):-1)
+#define H_HOOK_OTHERPRIO(x)   ((H_HOOK_PRIOCHECK(x)!=-1)?(H_HOOK_OTHERBASEPRIO+x):-1)
+#define H_HOOK_VALIDPRIO(x)   ((intp(x) && x>=0 && x<(H_HOOK_OTHERBASEPRIO+H_HOOK_PRIORITYRANGE))?x:-1)
+
+// maximum consumer per type
+#define MAX_SURVEYOR          1
+#define MAX_HOOK_MODIFICATOR  2
+#define MAX_DATA_MODIFICATOR  3
+#define MAX_LISTENER          5
+#define MAX_HOOK_COUNTS ({MAX_SURVEYOR, MAX_HOOK_MODIFICATOR, \
+                          MAX_DATA_MODIFICATOR, MAX_LISTENER, \
+                         })
+
+// data indices for return value of HookCallback() & Co.
+#define H_RETCODE             0
+#define H_RETDATA             1
+
+// return codes for HookFlow & Co.
+#define H_NO_MOD              0
+#define H_CANCELLED           1
+#define H_ALTERED             2
+
+// debugging
+#define H_DMSG(x)             (h_dbg() && (find_player("zesstra")) ? \
+    tell_object(find_player("zesstra"),x):0)
+
+#endif //_HOOKS_H_
+
+// prototypes 
+#ifdef NEED_PROTOTYPES
+// provider
+#ifndef __HOOK_PROVIDER_PROTO
+#define __HOOK_PROVIDER_PROTO
+
+// list of offered hooks
+int* HListHooks();
+
+// register to hook
+int HRegisterToHook(int hookid, mixed consumer, int hookprio,
+    int consumertype, int timeInSeconds);
+
+// unregister from hook
+int HUnregisterFromHook(int hookid, mixed consumer);
+
+// check wether object is a consumer for a given hook
+int HIsHookConsumer(int hookid, mixed consumer);
+
+// offer a hook or stop offering it
+protected void offerHook(int hookid, int offerstate);
+
+// trigger a hook
+protected mixed HookFlow(int hookid, mixed hookdata);
+
+#endif // __HOOK_PROVIDER_PROTO
+#endif // NEED_PROTOTYPES