Deep in the Swamp of Titan's Blooms stands a towering plant with no equal in the Second Citadel. It is in parts tree, fern, beanstalk, and a single gigantic flower -- and it is the Keep from which Lord Arum watches over his Swamp. No human has ever seen the labyrinthine interior of this Keep until today. When Rilla awakens in the Keep she will come face-to-face with things she'd never dreamed she'd see, magical artifacts and creatures and mysteries that tie deep into the workings of the very universe... but unless she can find a way to escape, she may be the only human to ever learn of them.