For one day only -- December 25th -- you can pick up 10 different eBook box sets for FREE.  You can get a total of 51 books, all for the low, low price of nothing!  
You can find them all on my Amazon author page here (filter by price): www.amazon.com/author/brooksjonathan
or, you can look at them individually:


Station Cores Complete Compilation Books 1-5US: https://www.amazon.com/dp/B082FSYVD4UK: https://www.amazon.co.uk/dp/B082FSYVD4
Dungeon of Chance Complete Series Books 1-3US: https://www.amazon.com/dp/B09W1Q4LTZUK: https://www.amazon.co.uk/dp/B09W1Q4LTZ
Dimensional Dungeon Cores Complete Series: Books 1-5US: https://www.amazon.com/dp/B0CLLLT9W8UK: https://www.amazon.co.uk/dp/B0CLLLT9W8
Spirit Core Complete Series: Books 1-5US: https://www.amazon.com/dp/B0BR6LB14CUK: https://www.amazon.co.uk/dp/B0BR6LB14C
Time Core Collection: Books 1-4US: https://www.amazon.com/dp/B0CFN7BRGHUK: https://www.amazon.co.uk/dp/B0CFN7BRGH
Holiday Dungeon Core: Novella 1-5US: https://www.amazon.com/dp/B0BLJ5X571UK: https://www.amazon.co.uk/dp/B0BLJ5X571
Dungeon World Series Complete Box Set: Books 1-5US: https://www.amazon.com/dp/B08F2TQHY1UK: https://www.amazon.co.uk/dp/B08F2TQHY1
Dungeon Crafting Series Books 1-3US: https://www.amazon.com/dp/B08P7SSL7GUK: https://www.amazon.co.uk/dp/B08P7SSL7G
Uniworld Online TrilogyUS: https://www.amazon.com/dp/B07RXLM4TMUK: https://www.amazon.co.uk/dp/B07RXLM4TM
Glendaria Awakens TrilogyUS: https://www.amazon.com/dp/B07JWBZCTLUK: https://www.amazon.co.uk/dp/B07JWBZCTL
Merry Christmas!