American Paul Malkou came into fiction very early and became famous surprisingly quickly. His first major work - "The Ring of Singularity" - was awarded in 2009 the prestigious Locus Award for the best debut novel and a whole bunch of lesser-known awards of the genre. However, even earlier, the story "Walls of the Universe" by Paul Malkou was nominated for the highest NF awards - Hugo and Nebula 2006 . - and won the Theodore Starjohn Award. The walls between parallel realities are getting thinner. An ordinary young man from a remote town in Ohio John Rayburn and his counterpart from the neighboring universe John the Primary suddenly change places. Which of the twin guys brought the Rubik’s Cube to another universe, and which one infected new fellow citizens with pinball?In which universe, strictly speaking, do we live with you? They're just having fun . Because very soon ALL parallel realities will be facing a mortal threat and they will not be joking at all.