Fire Sea by Margaret Weis & Tracy Hickman

Fire Sea - Margaret Weis, Tracy Hickman

Book 3 of the Death Gate Cycle is an entertaining, action packed, and sometimes intense, romp through Abarrach, the less-than-pleasant Realm of Stone (not to mention lava and poisonous fumes).  Haplo and Dog make new "friends" and meet old enemies.  The world building is deliciously original, with a rather interesting take on some old tropes.  The cover art for this book also exquisite!