Strangers raid Evie and Seb's house. The magic pen leaves mysterious and scary messages on the wall. A portal to a mysterious underground city is discovered in an old suitcase, and real miracles happen in the city itself... The most ordinary things have unusual properties there - vacuum cleaners can fly, toothy combs protect the contents of pockets from thieves, candles give the gift of invisibility, a bicycle bell can become a true friend , and the toilet brush becomes a formidable weapon. In this UNUSUAL place, Evie and Seb must learn the secrets of their UNUSUAL family, uncover a dark conspiracy and save their parents.