C.A. ยท Catherine A.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Mission Amsterdam: A Scavenger Hunt Adventure | 978-0-9892267-0-7 (0-9892267-0-0) | 2015 |
| Mission London: A Scavenger Hunt Adventure | 978-0-9892267-2-1 (0-9892267-2-7) | 2014 |
| Mission Paris: A Scavenger Hunt Adventure | 978-0-9892267-4-5 (0-9892267-4-3) | 2014 |