File:The Jungle Pyramid.jpg

Summary
Front cover of the Hardy Boys book The Jungle Pyramid. Illustration by Rudy Nappi.

Source

 * 1) Derived from a digital capture (photo/scan) of the book cover (creator of this digital version is irrelevant as the copyright in all equivalent images is still held by the same party). Copyright held by the publisher or the artist. Claimed as fair use regardless.