I Am Legend / Hell House

From Author Wars - https://authorwars.com/books/i-am-legend--hell-house-1002290.html

Overview:

Title: I Am Legend / Hell House
Author: Richard Matheson
Year: 2006
Type: Omnibuses

Editions/Publications:

Unknown. I Am Legend / Hell House (Unknown, Richard Matheson, Quality Paperback Book Club, ISBN-10: 9781582882338, $14.49, 317+[301] pages, Trade Paperback, Omnibus)