He pull the Staff of Frost out of his bag of holding, and offered it to her. "This is a Staff of Frost. It has several spells in it, but the one you want is wall of ice. You can use it to keep him from getting back into the water if I can draw him here. Of course, that means he will have to kill you to get out into the open areas. As for having any scrolls or wands of snare or stone shape, sorry, I don't."