Threshold

From Author Wars - https://authorwars.com/publications/threshold-619382.html

Overview:

Title: Threshold
Author: Chris Morris, Janet Morris
Year: 1991
ISBN-10: 0451450841
Publisher: Roc / New American Library
Price: C$5.50
Pages: 250
Binding: Paperback
Type: Novel
Title Reference: Threshold
Notes:
• "First Roc Mass Market Printing, June, 1991/10—2" • First Canadian printing [not stated] • Like CDN DAWs, many NAL printings of other publishers also had number lines that started with '2' • The artist is not credited, no visible signature on the artwork • $4.50 in the US • Cover printed in the US, book in Canada