Captain Lucy and the Catastrophic Conundrum of King Coulder's Cranky Caper

At the behest of the Xandali resistance, Captain Lucy, Swain Adon, and Siku investigate a mysteriously mobile arctic island far outside of its normal climate. Once there, they are caught up in a race to reach the top of the Glacial Peak against elite Zalrokhi Flame Priests, Lord Pendumyr and his crew, and the mysterious mages of Venganza de los Antiguos!
Swain causes an avalanche, knocks a zombie's head off, accordions an elemental to death, cheats at a drinking contest, and gets thrown off a mountain. Captain Lucy causes an avalanche, falls down a hole, throws a gun at a fool, gives herself heat stroke, and gets kidnapped. Siku causes an avalanche, makes a sled, decapitates a corpse, and reunites with a past teacher. King Coulder causes an avalanche, wins a drinking contest, murders a dozen people, and is "generally the best character" according to Lucy.