The Mystery of the Secret Room (#3)

Three friends — Ilya, Kira, and Sashka — unite as team «IKS» to investigate mysterious events. They study, befriend, quarrel, and reconcile… and also take on cases that send shivers down even the teachers’ spines!
 
During renovations in the western wing... of the boarding house, the workers discover something unusual: a secret passage to a secret room. The kids from team «IKS» can’t wait to find out what the ancient walls hide, so they decide to begin their investigation. Could it be a real alchemical laboratory? Meanwhile, the workers who found the room have devised something sinister, but Ilya, Kira, and Sashka are on guard.
 
The stories take place in a unique setting — a school-boarding house located in a former merchant estate from the nineteenth century. The author of the series, Svetlana Krivoshklykova, masterfully describes the mysterious atmosphere of the old building and the secrets it holds. The blend of the spirit of a closed boarding house with the modern lives of ordinary schoolchildren makes the reading captivating, and the unraveling of mysteries memorable.