Alfred Hitchcock & THE THREE INVESTIGATORS in 

The Secret of Skeleton Island  

Text by Robert Arthur. Illustrated by Harry Kane. Copyright 1966. 

This is #6 in the series. This is a Random House FIRST EDITION, FIRST PRINTING WITH PROPER POINTS (back cover lists to itself #6), no references to Gibraltar Library Binding on rear cover, blue spiderweb/graveyard illustrated endpapers, fully illustrated boards (illustration continues on the spine and rear cover), no ISBN on the copyright page.

Synopsis: The Three Investigators are assisted by a Greek youth as they search for clues to a mysterious thief on an island once inhabited by pirates.

This book is in very good condition.  The book has some shelf wear. A Great addition to a collection of this series!