Notes: Illustrated boards. On spine is publisher's number "250" and series number "2." "Illustrated by Herb Mott" on title page, but no explicit mention of cover artist. Interior drawings throughout the book. On back cover is a list of Golden Press "Fiction for Boys and Girls" with "Watch for new titles - each $1.00." The first two volumes of the Dig Allen series are shown. "Copyright 1960 by Golden Press, Inc." No statement of edition or printing.