I would like the following Don Pendleton's, please:
Edge of Night
Night of the Jaguar
Prelude to War
Terms of Survival
I would also like Edward S. Aarons - Assignment Star Stealers; Will B. Aarons - Assignment Tiger Devil; Terry C. Johnston's Blood Song; Terry C. Johnston's Devil's Backbone; and H. P. Lovecraft's The Doom That Came to Sarnath.
That's a total of 21 books, 16 of which are your 6 for 1. Would you accept four credits for these 21 books?