Just an incredibly entertaining book that delivers on its premise in exactly the ways I'd hoped and more. If the idea of edgy Sherlock Holmes on an East Indian Company boat being threatened by a supernatural entity as part of an extremely convoluted mystery that's full of convenient coincidences and backstabbing plots sounds appealing in the least, you oughta grab this, and that's just what's in the blurb. It's well written, moves at a good pace, is never dull and has some good surprises up its sleeve.