On instinct, Yaalu's going to check out the sewers. You'd be amazed at the things you can find hiding in places like that!

Now, if only sewers weren't long tubes with limited places to hide... Like a particularly railroad-y dungeon crawl. He's going unarmed--he's got more concern for accidentally killing Bristol victims than concern for himself, but he's not exactly vulnerable without a weapon. In any encounter where he can get away with it, he'll use nonlethal force. Nothing like giving last rites in a rat-infested cistern.

...Nothing he hasn't done before, in other words.