Jason recently lost his beloved grandfather and was very upset about it. During their lifetime, they were close and often communicated. The grandfather had a large collection of rare books, which he bequeathed to his grandson. It's time to take it apart, no matter how hard it was for our hero. Traditionally, each collection has its own pearl, an exhibit that is the most valuable. There was such a book, Precious Book, in my grandfather's collection, but the heir did not find it while checking the catalog. Apparently the grandfather decided to hide it more reliably than the rest of the books, and left clues to his grandson that only he can solve. Join the unraveling of fascinating riddles, search for the items you need and find the book in the Precious Book.
