It Came Through the Dog Door

From Author Wars - https://authorwars.com/books/it-came-through-the-dog-door-1651495.html

Overview:

Title: It Came Through the Dog Door
Author: James Gallagher
Year: 2004
Type: Short Fiction

Editions/Publications:

Unknown. Horror Garage, #9 (Unknown, James Gallagher, Under the Volcano, $5.95, 52 pages, quarto, MAGAZINE)