Someone in the Dark

From Author Wars - https://authorwars.com/publications/someone-in-the-dark-256691.html

Overview:

Title: Someone in the Dark
Author: August Derleth
Year: 1978
ISBN-10: 0515047384
Publisher: Jove / HBJ
Price: $1.75
Pages: 223
Binding: Paperback
Type: Collection
Title Reference: The Return of Hastur
Notes: Stated 1st printing