The Splynn Dimensional Market Rifts Atlantis Two Rifts World Book 21 by Palladium Books is a role-playing game product set in the Rifts universe. The book provides detailed information and gameplay mechanics for exploring the dimensional market rifts and the lost city of Atlantis. With the well-known quality and attention to detail that Palladium Books is known for, this book offers a unique and immersive experience for players looking to delve into the depths of the fictional world of Rifts.