When I engage the-ghoul-at-the-lighthouse creep and manage to go in sneaking mode, with combat mode still on. The the-ghoul-at-the-lighthouse starts attacking NPC's in Cyseal each turn with his teleport spell. The-ghoul-at-the-lighthouse basicly murdered most NPC's in Cyseal eventually by teleporting to a NPC, hitting it and teleporting back to the lighthouse.