Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Halloween Chase | 2022 | Lisa Freed | Buy |
| 2 | Halloween Bites | 2022 | Lisa Freed | Buy |
| 3 | Halloween Hero | 2022 | Lisa Freed | Buy |
| 4 | Halloween Baby | 2022 | Lisa Freed | Buy |
| 5 | Halloween Spirit | 2022 | Lisa Freed | Buy |
| 6 | Halloween Hunt | 2022 | Lisa Freed | Buy |
| 7 | Halloween Craving | 2022 | Lisa Freed | Buy |
| 8 | Halloween Mating | 2022 | Lisa Freed | Buy |
| 9 | Halloween Encounter | 2022 | Lisa Freed | Buy |
| 10 | Halloween Blood Lust | 2022 | Lisa Freed | Buy |
| 11 | Halloween Darkness | 2022 | Lisa Freed | Buy |
| 12 | Halloween Guardian | 2022 | Lisa Freed | Buy |
| 13 | Halloween Switch | 2022 | Lisa Freed | Buy |
| 14 | Halloween Mischief | 2022 | Lisa Freed | Buy |
| 15 | Halloween Bang | 2022 | Lisa Freed | Buy |
| 16 | Halloween Trip | 2022 | Lisa Freed | Buy |
| 17 | Halloween Kismet | 2022 | Lisa Freed | Buy |
| 18 | Halloween Swirl | 2022 | Lisa Freed | N/A |
A Monstrous Mistake is an eighteen-book series published entirely in 2022. Each book is a Halloween-themed paranormal romance where a heroine ends up with a monster love interest. The titles all start with “Halloween” followed by a word that hints at the story’s tone or conflict: Halloween Chase, Halloween Bites, Halloween Hero, and so on through Halloween Swirl.
The books were released rapidly, all within the same year. Each one is self-contained with its own couple and creature type. The series shares a Halloween setting and monster romance premise with Freed’s later Monstrous Mistakes series (2022-2024), though the two are separate.