| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| The Case of the Growing Bird Feeder | Hardcover | 978-0-2281-0189-5 | 2019 | Tara Hungerford |
| The Case of the Growing Bird Feeder | Paperback | 978-0-2281-0190-1 | 2019 | " |
| The Case of the Story Rock | Hardcover | 978-0-2281-0191-8 | 2019 | " |
| The Case of the Story Rock | Paperback | 978-0-2281-0192-5 | 2019 | " |
| The Case of the Vanishing Caterpillar | Hardcover | 978-0-2281-0193-2 | 2019 | " |
| The Case of the Vanishing Caterpillar | Paperback | 978-0-2281-0194-9 | 2019 | " |
| The Case of the Wooden Timekeeper | Hardcover | 978-0-2281-0195-6 | 2019 | " |
| The Case of the Wooden Timekeeper | Paperback | 978-0-2281-0196-3 | 2019 | " |
E.H. · Eric Hagan · Eric Hazan · Eric Hazen · Eric Hougan · Erik Hoeksema