The mysterious builders leave a trail through the local cloud, which the Majestic Draght follows—all those involved expect to reap enormous benefits from tracking down the remains of this advanced civilization.

But do the aliens even want to be found? In any case, a promising target turns out to be a disappointment. Here of all places, Marchenko and his alien friends realize that they need the help of the builders more urgently than they would like.

The celestial body they have headed for remains shrouded in mystery – and ultimately seems to be exactly what it appeared to be at first glance: a planet that has nothing to offer but death.