Icebreaker Snow's good friend Twinkle the pilot boat is posted to Utö Island in the Archipelago Sea. Soon Twinkle is hard at work plying the iced-over waters of early spring. Returning from the pilot boat meeting point one day, Twinkle is surprised by a snowstorm that caused her instruments to stop working. She is out of contact with the rest of the world and finds herself in a place whose existence is known only in legends...

Written by Teemu Leppälä, who is a real-life icebreaker operator, sea captain, and pilot, the Icebreaker Snow books are exiting stories that take both children and adults on real-life adventures on the icy seas.

The Lost City is the third book in the series about Icebreaker Snow and his friends.