This listing is for a pair of Hardcover First Editions First Printings Animorphs Series Books. The books included are: 1-The Hork-Bajir Chronicles (ISBN 0439042917). First Scholastic Printing, November 1998. 2-Visser (ISBN 0439087643). First Scholastic Printing, November 1999 Visser is the companion book that goes with The Hork-Bajir Chronicles. This series of books in hardcovers and first editions and first printings and in this excellent of condition are VERY tough to find.