Loved by thousands of teenagers, the series about the investigations and adventures of the twin sisters Scarlett and Ivy is now in a new design. Readers will find a new design and atmospheric flyleafs, reminiscent of newspaper clippings. The entire series about the adventures of the sisters was included in the Amazon top 100 books! The stunning surroundings of an English boarding school located in an ancient castle, a stern headmistress, friendship and mutual assistance!When Scarlett died of the flu, her twin sister Ivy was offered to take the place of the deceased at Rookwood School. She has to pretend to be Scarlett! Ivy goes to school and immediately realizes that something strange is going on here. The students disappear, the headmistress is up to no good, and fragments of her sister's diary, hidden in the hidden corners of the school, hint at a terrible danger.What really happened to Scarlett and why is the school trying to keep it a secret? Ivy needs to find answers to all these questions as soon as possible, because another Rookwood student has disappeared without a trace.…A story for everyone who likes to solve mysteries, as well as for those who enjoyed the "Mystery of the Prequillow School" and "Tower of Memories"! A real gift for fans of the detective genre!