The points of issue
Ace Double D-223 paperback original, bound dos-a-dos with This Fortress World by James E. Gunn (the Gunn side abridged from the 1955 Gnome Press text). Cover art by Valigursky and Emshwiller.
Is this the true first?
US Ace Double paperback original is the true first; this is Silverberg's first solo novel in book form.
Telling it from reprints & book-club editions
No book club edition.
Frequently asked questions
Is my copy of The 13th Immortal a first edition?
Look for these first-edition points: Ace Double D-223 paperback original, bound dos-a-dos with This Fortress World by James E. Gunn (the Gunn side abridged from the 1955 Gnome Press text). Cover art by Valigursky and Emshwiller.
How do I tell the first printing from a later one?
Check the copyright page for the publisher's first-printing convention and confirm the points above. US Ace Double paperback original is the true first; this is Silverberg's first solo novel in book form.
Is the book-club edition the same as the first?
No book club edition.
I have a first edition of The 13th Immortal — what should I do?
If you're clearing books, New Mexico Literacy Project offers free pickup in Albuquerque, any condition, and makes sure collectible copies aren't lost. To sell, see the author's collecting guide. Either way, nothing valuable ends up in a landfill.