Notes: Copyright page: "Published by Roc, an imprint of New American Libarary, a division of Penguin Group (USA) LL. Previously published in a Roc hardcover edition." "First Roc Mass Market Printing, August 2015" "Copyright (c) Stephen Baxter, 2013" "Excerpt from Ultima (c) Stephen Baxter, 2015" Third printing per number line "10 9 8 7 6 5 4 3" Also priced $10.49 Can. (Canadian). Date (year) set by purchase in 2015. Cover artist not credited. Based on same cover for verified hc edition. Novel ends on numbered page 487. Unnumbered page 489 has a paragraph that seems to be part of the story. Unnumbered page 491 starts a two page afterword by the author about the book. Second page is numbered. Signed by author and dated December 2012. Unnumbered page 493 introduces the excerpt from Ultima. Pages 495 to 504 (all but first numbered) are the excerpt. Date for excerpt based on this edition as previous edition (1) did not mention excerpt.