Books

The Whistle Blower The Whistle Blower
2019
Introducing Gertrude, Gumshoe Introducing Gertrude, Gumshoe
2016
The Showstopper The Showstopper
2019
Gertrude, Gumshoe: Slam Is Murder Gertrude, Gumshoe: Slam Is Murder
2017
Gertrude, Gumshoe: Murder at the Thrift Store Gertrude, Gumshoe: Murder at the Thrift Store
2016
Gertrude, Gumshoe: Gunslinger City Gertrude, Gumshoe: Gunslinger City
2018

Audiobooks

Gertrude, Gumshoe Cozy Mystery Boxed Set: Books 1–3 Gertrude, Gumshoe Cozy Mystery Boxed Set: Books 1–3
2017
Gertrude, Gumshoe Cozy Mystery Boxed Set: Books 4–6 Gertrude, Gumshoe Cozy Mystery Boxed Set: Books 4–6
2018
Gertrude, Gumshoe and the Clearwater Curse Gertrude, Gumshoe and the Clearwater Curse
2018
Gertrude, Gumshoe: Gunslinger City Gertrude, Gumshoe: Gunslinger City
2018
Gertrude, Gumshoe and the VardSale Villain Gertrude, Gumshoe and the VardSale Villain
2017
Introducing Gertrude, Gumshoe Introducing Gertrude, Gumshoe
2016