The Jack Drummond Adventure Series: (Volumes 1, 2, 3 & 4) Kids Books for Ages 9-12 Matthew Harper Adventure Series for Children Ages 9-12 ISBN-13: 978-1493577231 ISBN-10: 1493577239 A very warm welcome to "The Jack Drummond Adventure Series for Children Ages 9-12 Bundle". This bundle includes the first four books in the series and sets the scene for what is fast becoming a popular series. Jack Drummond is your typical 13 year old schoolboy except...