Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Halloween Blood Lust | 2022 | Lisa Freed | Buy |
| 2 | Halloween Trip | 2022 | Lisa Freed | Buy |
| 3 | Summoned on Halloween | 2024 | Lisa Freed | Buy |
| 4 | Bitten on Halloween | 2024 | Lisa Freed | Buy |
| 5 | A Demon for Halloween | 2024 | Lisa Freed | Buy |
| 6 | Kissing Frogs on Halloween | 2024 | Lisa Freed | Buy |
| 7 | Mates For Halloween | 2024 | Lisa Freed | Buy |
| 8 | A Warlock for Halloween | 2024 | Lisa Freed | Buy |
| 9 | Vampires For Halloween | 2024 | Lisa Freed | Buy |
| 10 | Tentacles for Halloween | 2024 | Lisa Freed | Buy |
| 11 | A Tail for Halloween | 2024 | Lisa Freed | Buy |
| 12 | An Orc for Halloween | 2024 | Lisa Freed | Buy |
| 13 | Incubi for Halloween | 2024 | Lisa Freed | Buy |
| 14 | A Hunter for Halloween | 2024 | Lisa Freed | Buy |
| 15 | Turned On Halloween | 2024 | Lisa Freed | Buy |
| 16 | Aliens for Halloween | 2024 | Lisa Freed | Buy |
Monstrous Mistakes is a sixteen-book series published between 2022 and 2024. The first two books, Halloween Blood Lust and Halloween Trip (both 2022), also appear in the A Monstrous Mistake series. The remaining fourteen entries came out in 2024 and expand the Halloween monster romance concept with new creature types.
The 2024 titles cycle through different supernatural beings: Summoned on Halloween and A Demon for Halloween bring demons, Bitten on Halloween and Vampires For Halloween cover vampires, An Orc for Halloween adds fantasy creatures, Tentacles for Halloween goes sci-fi, and Aliens for Halloween takes the premise furthest from its origins. Each book is a standalone romance.