Book 4

The Lower Case

by Harry Demaio

Published 30 March 2016

Book 5

The Curse of the Mummy's Case

by Harry Demaio

Published 14 November 2016

Book 6

The Attaché Case

by Harry Demaio

Published 22 February 2018

Book 7

The Suit Case

by Harry Demaio

Published 20 September 2018

Book 8

The Crank Case

by Harry Demaio

Published 15 November 2018

Book 9

The Basket Case

by Harry Demaio

Published 21 February 2019

Book 10

The Camera Case

by Harry Demaio

Published 19 September 2019

Book 11


Book 12

The Nut Case

by Harry Demaio

Published 23 November 2020

Book 13

A Case of Déjà Vu

by Harry Demaio

Published 26 February 2021

Book 14

The Case of Cosmic Chaos

by Harry Demaio

Published 30 June 2021

Book 17


Book 18


Book 19

Bears At Sea (Octavius Bear 19)

by Harry Demaio

Published 22 September 2023

Book 20


Book 21

ENDGAMES (Octavius Bear 21)

by Harry Demaio

Published 19 November 2024