A tragic accident took the life of the brilliant detective Sherlock Holmes. But even from another world, he continues to amaze his friends.

Doctor Watson, Lestrade and Mycroft Holmes are invited to the notary for the reading of the will of the famous detective. It turns out that in the last years of his life, Sherlock Holmes tried to unravel the mystery of an insidious and possibly supernatural criminal who committed fifteen bloody murders. Each of them surpassed in cruelty anything Holmes had ever seen. In his will, he instructs his friends to put the finishing touches on this mysterious matter!

Published in Russian for the first time!