Not in the least disappointing as a second novel, especially with how much I fell in love with the first. It's not the first novel over again, which I would never forgive, but entirely new with different locations and trouble for our two heroes (ha!) to get themselves into. Immensely fun to watch Locke and Jean out of their depth on the open sea.
I found the first third difficult to follow at times, with too many threads, but they came together brilliantly in the end for one hell of a payoff.