The Books of Babel

I recently finished reading The Books of Babel tetralogy by Josiah Bancroft. The series was so engaging I plowed through them all, only taking a brief intermission between books two and three to read Watts' Blindsight. The Books of Babel are Steampunkish fantasy, set in the titular Tower, which is something of Big Dumb Object in science fiction parlance.

The series starts with Senlin Ascends where the schoolmaster of a small seaside town and his new bride get separated on a visit to the Tower. I hesitate to say too much regarding the arc of the series for fear of spoiling it, but suffice to say there are multiple ringdoms of almost Vancian cultural eccentricity, Steampunk technology including "cyberware" supplied by a mystery inventor high up in the Tower, air ship pirates, and secrets to uncover aplenty, including the mystery of what the Brick Layer, the head of the Tower's construction, actually intended as its function.

The series has a fair amount bit of humor and the chapter epigraphs from in-world works are often wry, but the Tower is also a rather cruel and violent place at times. Bancroft's narrative doesn't flinch from this or keep the events at an ironic distance. Besides Tom Senlin, the headmaster, there are a number of other viewpoints characters, most of whom are capable women--though there's also a fastidious stag whose brain has been transplanted to a robotic body. But I said I didn't want to give too much away, didn't I? 

Anyway, the series is well-worth checking out, and I think would give a lot of inspiration for rpgs in addition to being a fine read.