Perdido Street Station (Bas-Lag)

Generous, gaudy, grand, grotesque, gigantic, grim, grimy, and glorious, Perdito Street Station is a bloody fascinating book. It's also so massive that you may begin to feel you're getting too much of a good thing; just slow down and enjoy.

Yes, but what is Perdido Street Station about? To oversimplify: the eccentric scientist Isaac Dan der Grimnebulin is hired to restore the power of flight to a cruelly de-winged birdman. Isaac's secret lover is Lin, an artist of the khepri, a humano-insectoid race; theirs is a forbidden relationship. Lin is hired (rather against her will) by a mysterious crime boss to capture his horrifying likeness in the unique khepri art form. Isaac's quest for flying things to study leads to verification of his controversial unified theory of the strange sciences of his world. It also brings him an odd, unknown grub stolen from a secret government experiment so perilous it is sold to a ruthless drug lord--the same crime boss who hired Lin. The grub emerges from its cocoon, becomes an extraordinarily dangerous monster, and escapes Isaac's lab to ravage New Crobuzon, even as his discovery becomes known to a hidden, powerful, and sinister intelligence. Lin disappears and Isaac finds himself pursued by the monster, the drug lord, the government and armies of New Crobuzon, and other, more bizarre factions, not all confined to his world. --Cynthia Ward