The Mountain of Ice — Richard C. White

I knew I should have checked his sleeves . . .

One wrong turn of the cards and I find myself trying to scale a frozen cliff to break into a castle to steal an item to pay off that damn wizard. Oh, did I mention that I'm stuck with three other guys who'll probably try to kill me and keep the reward for themselves? And that the castle is heavily guarded? Plus, there's an evil spirit rumored to lurk on the mountain? And I have no idea what the item is or what it looks like?

Yep. My luck is holding steady. All bad.