| title | ISBN-13 | year of publication |
|---|---|---|
| The Ragamuffin Mystery | 978-1-84135-733-1 | 2009 |
| the Rat-a-Tat Mystery | 978-1-84135-732-4 | 2009 |
| The Rilloby Fair Mystery | 978-1-84135-729-4 | 2009 |
| The Ring O' Bells Mystery | 978-1-84135-730-0 | 2009 |
| The Rockingdown Mystery | 978-1-84135-728-7 | 2009 |
| The Rubadub Mystery | 978-1-84135-731-7 | 2009 |