The discovery of the “other brane” - a parallel universe consisting of dark matter - has allowed people to travel to distant planets. Due to the difference in spatial metrics, it is never possible to determine exactly where a newly discovered planet is located in our brane, so the search must be carried out “blindly.”

An expedition led by Hassan Mafud opens the door to a world inhabited by strange intelligent creatures. Their level of development roughly corresponds to Earth's Victorian era. Captivated by the study of a foreign culture, earthlings notice unusual behavior of local residents. Why are they so worried about the blue star that appears in the night sky?