- Illustrator: Marja-Liisa Plats
- 2020, 221 pp
- ISBN: 9789949986866
- Age: 9+
- fiction, storybook
Rights sold: Finland
Reilika likes visiting her father at work, especially after he gets a job at the Estonian National Museum. It gives her a chance to poke around and sketch some of the pieces. One day, she notices that the Vanemuine blade – one of the most fascinating items in the “Echo of the Urals” exhibition – has been switched out for a copy! When neither Reilika’s father nor his colleague can explain it, they decide to get the police involved. The museum director himself even wants to meet the young detectives. Now, it’s up to Reilika to convene the secret club to solve another mystery.
The first book in Keränen’s The Souptown Secret Society series was The Stolen Orange Bicycle (2008). Vanemuine's Blade is the eleventh.