Mr. Calamity & The Valley of Eternity

From Author Wars - https://authorwars.com/publications/mr-calamity--the-valley-of-eternity-685365.html

Overview:

Title: Mr. Calamity & The Valley of Eternity
Author: Kenneth Robeson
Year: 2018
ISBN-10: 9781618273185
Publisher: Altus Press
Price: $29.95
Pages: 592
Binding: Trade Paperback
Type: Omnibus
Title Reference: Mr. Calamity & The Valley of Eternity
Notes: Data from Amazon.com as of 2018-09-30. "By Will Murray and Lester Dent writing as Kenneth Robeson" on the title page. "Mr. Calamity on the cover", but "Mr. Calamity & The Valley of Eternity" on the title page.