Xen and Nova have traveled to other worlds before, but now everything has changed: they have passed through a gate that should not exist at all, have done terrible things that cannot be fixed, and will no longer be able to go back. The new Empress of the Great Network has just rescued Chandni Hans from the prison freezer, and a new test has appeared in the life of the heir to the great dynasty and the motor girl - the mysterious Black Zone. It is becoming more and more difficult to find a way home - and how if the house may no longer exist?..