Entrance Allowed for the Dead

"Is there enough evidence?" - a horrifying message left at the crime scene by the suspected ghost-killer. It seems that the witch Elvira accidentally summoned a real ghost, and he intends to kill everyone who dared to disturb him. The... police do not believe in ghosts, and Elvira herself comes under suspicion. Fearing for her life, the girl enlists old acquaintances from the IIN to help with the investigation.
 
While Dvorzak's team deals with the ghost, Sasha and Max Reichert suddenly discover they have a son. Can ex-spouses have a common child? There are many realities in the universe, and now the boy needs to be returned to a happy family from a parallel future. Dvorzak is the only one who can do this, as in this world, only the dead are allowed in…