Shazam! A Circus Adventure

From Author Wars - https://authorwars.com/books/shazam-a-circus-adventure-2507281.html

Overview:

Title: Shazam! A Circus Adventure
Author: Robert K. Ottum
Year: 1977
Type: Short Fiction
Series: Shazam!

Variant Titles:

1977. Shazam! A Circus Adventure