2010 - The Monster Who Ate My Peas (Paperback) → Hardcover ISBN-13: 9781561455331 ISBN-10: 1561455334 Genre: Children's Books ? 2008 - Trick or Treat on Monster Street (Hardcover) ISBN-13: 9781561454655 ISBN-10: 1561454656 Genre: Children's Books ? 2007 - The Monster Who Did My Math (Hardcover) ISBN-13: 9781561454204 ISBN-10: 1561454206 Genre: Children's Books ? 2001 - The Monster Who Ate My Peas (Hardcover) → Paperback ISBN-13: 9781561452163 ISBN-10: 1561452165 Genre: Children's Books 2 |