Sherlock Holmes from the world of science, Professor Seldom, and his friend, a young mathematician from Argentina, are again embroiled in a complex investigation. This time they have to solve a series of crimes bizarrely related to the life and works of Lewis Carroll - the author of the immortal dilogy about the adventures of Alice in Wonderland and in the Looking Glass. A cruel attempt was made on a girl who found in the Oxford archives a manuscript that could become a sensation of the century for all who study the biography or work of Carroll. Poisoned publisher who was going to publish this document. And each of the actions of the mysterious killer resembles another quote from the books about Alice.