Richard T. Ryan
Books
The official Sherlock Holmes trivia book
1987
ISBN 9780933341999
So you think you're well educated
1988
ISBN 9781557700469
Agatha Christie trivia
1990
ISBN 9780517699171
Vatican Cameos
2016
ISBN 9781780929910
The Vatican Cameos
2016
ISBN 9781780929897
The Stone of Destiny
2017
ISBN 9781787050822
The Druid of Death - A Sherlock Holmes Adventure
2018
ISBN 9781787052956
The Merchant of Menace
2019
ISBN 9781787054387
Merchant of Menace
2019
ISBN 9781787054394
Through a Glass Starkly
2020
ISBN 9781787055933
Traitorous Templar
2024
ISBN 9781804245033- No cover
No Holidays for Sherlock Holmes