Garnier lets his patients roam the halls of his fortress freely. No one, save scholars, may enter his personal workspace. Apart from the archers defending the rooftops, slipping in should prove simple enough.
Altaïr approached the informant hiding near the city wall.
- Informant: Altaïr! He's after me! He saw me! He will kill me! And my wife and children! What a mess! Have you come to end my misery? No? Al Mualim has more compassion than I thought. Could you help me then? A Knight of the Hospitalier's after me. If you could eliminate him, you would do a fellow a real honor. I've been here in Acre since the Crusaders were laying siege. I can give you important information in return.
Altaïr agreed to help, and eliminated the Hospitalier shortly after, before returning to the informant.
- Informant: It is done? He's dead? Oh, I am extremely grateful. So, here is what I know about Garnier de Naplouse, Grand Master of the Hospitalier. Garnier lets his patients roam the halls of his fortress. No one, save scholars, may enter his personal workspace, and the rooftops are guarded by archers. I'm sure this information will help deliver Garnier, to the gates of hell.
Altaïr assassinated the target specified by the informant, and learned that Garnier let his patients roam the fortress freely. He also learned that only the scholars had access to Garnier's personal workspace.