The Thea Sisters participate on a dig at Hierapolis. During their visit to the excavation site, Professor Brenninger unearths a series of priceless and very old figurines. But the Thea Sisters soon figure out that it's a scam. They start to investigate and discover that the figurines are fake, exposing Professor Brenninger's plans.
| Author | Thea Stilton |
| Publisher | Scholastic |
| Binding Type | Paperback |
| Language | English |
| ISBN-13 | 978-9352755547 |