In this fun bedtime story for kids, Quasi is looking through his map collection, when he finds that one of the maps only has an X on it, with no map. He looks at it under a candle and is able to see where the treasure is located. When he goes to find it, he discovers that there was no treasure and its a trap- a venus fly trap. The rest of the Octonauts come to the rescue and help to save Quasi from the trap.