Continuation of the adventures of the former barbarian, and now special agent Thomas Brain! The experience and skills of Thomas Brain were noticed by the curator of the Imperial Security Service. The fort is now garrisoned, there is someone to look after it, and Thomas is sent to a new duty station, where he is being prepared for a risky action. However, the local climate plays a strange joke on him - he continually falls into other realities, where his help is greatly needed, but when he returns, he no longer remembers anything. When his ghostly missions finally coalesce, Thomas is shocked to discover the horror he experienced when he came into contact with a binomial being of an unknowable nature...