“Friday, February 30th” is copyright © 2023 by Mark Thielman. It is an original publication and appears here for the first time.
“X Marks the Spot” is copyright © 2022 by Hal Blythe and Charlie Sweet. Reprinted by permission of the authors.
“Secrets in the Snow” is copyright © 2016 by J. M. Taylor. Originally published in Crime Syndicate Magazine, Issue 2. Reprinted by permission of the author.
Crime Syndicate MagazineRing-a-Ding-Ding, by Frank Kane, was originally published in 1963.
Ring-a-Ding-DingThe Case-Book of Sherlock Holmes, by Arthur Conan Doyle, was originally published in 1927.
The Case-Book of Sherlock Holmes“The Giftie Gien,” by Malcolm Jameson, was originally published in Unknown Worlds, April 1943.
Unknown Worlds“Space-Can,” by Murray Leinster, was originally published in Thrilling Wonder Stories, June 1948.
Thrilling Wonder Stories“The Knowledge Machine,” by Edmond Hamilton, was originally published in Thrilling Wonder Stories, June 1948.
Thrilling Wonder Stories“The Timeless Tomorrow,” by Manly Wade Wellman, was originally published in Thrilling Wonder Stories, December 1947.
Thrilling Wonder StoriesSecret of the Earth Star, by Henry Kuttner, was originally published in Amazing Stories, August 1942.
Secret of the Earth StarAmazing Stories