Amelie and Dodo are twins who live in Columbus Street. But who is Aunty Dot? Is she a witch or Baba Yaga? Or just a funny, eccentric old lady, who happens to float over the city at night? Is she a relative of Mary Poppins? One thing is certain: she lives on a cloud, wears a polka dot morning dress and she switches lamps for profession. But she is so much more than that! She simply knows everything children want… The twins and Aunty Dot experience wonderful adventures together.