This book is bilingual. It is written in both English and Polish. You write a letter to Santa Claus. You put the letter on the windowsill or throw it in a mailbox. You dream of all the presents that you described in it. You wait for Christmas to find all of the colourful boxes tied with ribbons under the Christmas tree. But have you ever wondered what would happen if your letter was never received? How would you feel if Santa never found out about your dreams? In his long life, Sigmund sent three letters to Santa. Unfortunately, none of them was ever read. Why, you ask? Read this story and follow Sigmund to the magical little street hidden between two old tenement houses. Sit down comfortably on his chocolate velvet armchair with his cat Bolt and with his dreams that never get old. Find out how Sigmund's lost letters changed his life for the next 80 years.