The Bat

From Author Wars - https://authorwars.com/publications/the-bat-664263.html

Overview:

Title: The Bat
Author: Mary Roberts Rinehart
Year: Unknown
Publisher: Dell
Price: $0.25
Pages: 224
Binding: Paperback
Type: Novel
Title Reference: The Bat
Notes: No date or ISBN given. There appears to be 3 different cover colors for this edition. Also, there is an earlier edition Dell 241 for this book. Artist is credited on copyright page.