Miracles in Guslyar

Have you been to Great Guslyar? No? And you don't even know what it is and where it is? Yet this is an absolutely unique city located on a "bulge of the earth," and therefore it is visible to aliens from space better than any other city in the world. Naturally, visits from guests from other planets happen here almost every day. The residents have stopped being surprised by this. And if only it were just the aliens! Just listing the completely extraordinary incidents recorded here would take several pages! Judge for yourself. In an old cellar, a rejuvenating potion is unexpectedly found. And seven brave city dwellers are ready to test its effects on themselves. Moreover, in a nondescript pet shop, 20 goldfish are delivered through a regular invoice, and it turns out that all of them are not ordinary aquarium fish, but magical! And each of them can grant three wishes...