Tess and Tilly Cozy Mystery

1 The Christmas Letter (2017)
2 The Valentine Mystery (2018)
3 The Mother's Day Mishap (2018)
4 The Halloween House (2018)
5 The Thanksgiving Trip (2018)
6 The Saint Paddy's Promise (2019)
7 The Halloween Haunting (2019)
8 The Christmas Clause (2019)
9 The Puppy Project (2020)
10 The Wedding Plan (2020)
11 The Baby Plan (2021)
12 The Ghostly Groundskeeper (2021)
13 The Murder Chronicles (2022)
14 The Castle Caper (2022)
15 The Christmas Visitor (2023)
16 The Sleuthing Game (2024)
17 The Firework Frenzy (2024)
18 The Ghost Therapists (2024)

Tess and Tilly: Books 1-3 (2021)
Tess and Tilly: Books 4-6 (2021)
Tess and Tilly: Books 7-9 (2021)
Tess and Tilly: Books 10-12 (2022)
Tess and Tilly: Books 13-15 (2024)
Tess and Tilly: Books 16-18 (2025)