Ghoulia: Making New Friends Can Be Scary (Book #1)
2018
Ghoulia and the Mysterious Visitor (Book #2)
2019
Ghoulia and the Ghost with No Name (Book #3)
2020
Ghoulia and the Doomed Manor (Ghoulia Book #4)
2021
Mortina. Una storia che ti farà morire dal ridere
2017
Ghoulia and the Sunken Secret (Book #5)
2025