Survival of the Tidal Flat, Volumes 1 & 2 (Complete Set) There's a slight crease on the edge of the cover, but there are no markings inside. Please understand that this item has been stored at home and used by a child, so there may be some signs of use. Please purchase with this in mind. m(_ _)m Feel free to ask any questions or make requests (^_^) Instant purchase OK Survival Series Geo Survival Expert Kagakuru BOOK