Best-selling author Rick Riordan presents the breathtaking conclusion to Roshani Chokshi's New York Times best-selling Pandava quintet, now in paperback.The Pandavas only have until the next full moon to stop the Sleeper from gaining access to the nectar of immortality, which will grant him infinite power. But how can Aru, Mini, and Brynne hope to defeat him without their celestial weapons? The Sleeper and his army are already plundering the labyrinth, and the sisters can't e