| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| A Lonely and Curious Country: Tales from the Lands of Lovecraft | 978-0-692-50196-2 (0-692-50196-7) | 2015 | Matthew Carpenter · Steven Prizeman · Sean Farrell · KH Vaughn · Rebecca Allred · Christine Morgan · Susan Brian |
| The Lurking Chronology: A Timeline of the Derleth Mythos | 978-0-692-50890-9 (0-692-50890-2) | 2015 | |