If people aren't yet aware, all of my paperback interactive adventure books are eventually going to be made free as PDFs through DriveThruRPG once their KDP digital exclusivity has ended. So far, four titles are available as free PDFs:

The Mystery of Dracula
Voyage Across the Galaxy
The Ballad of Lonely Scar
and River of Dread.

The upcoming dates for the others to join them are (these dates are only estimates as the DriveThruRPG approval process can take a few days):

Children of the Painted Apple - January 13, 2021
The Defenders of Dusk - February 18, 2021
Cheese Dreams - February 19, 2021

All of the PDFs are complete versions of the books, except some will be missing commissioned artwork due to contractual reasons. All the puzzles images will be intact, however. If people download the books and enjoy them enough to want to buy a paperback version of the book, then this will go a long way to helping me write more. Otherwise, its fine if people don't. Treat these PDFs like share/freeware software.