Dear reader, I sincerely envy you because you have so many exciting adventures, interesting acquaintances, unexpected discoveries, and heroic battles with evil ahead of you. I suggest you take a trip to an unreal inhabited system, and together with ordinary earthly schoolchildren, Denis and Lida, fly beyond the Moon, visit Venus and Pluto, visit the fluffy Pashtar, make friends with the Mercurians and the underwater giants of Ilian, fight the insidious Alisids and find faithful comrades in the ranks of the solar fleet! All this and much more awaits you on the pages of this fantastic story. I promise, it won’t be boring and, after reading it, you yourself will also envy those who still have it ahead.