Six siblings' summer break began when Sooyeon sent them back to their grandmother's house in Gyeongsang. They found an old treasure hunt map; the Marauders and tried to solve the riddles to find the jewels But in order to solve the riddles, they had to ask help from distant friends. Will they be able to find the treasure? (Inspired from Barbie and Her Sisters in Great Puppy Adventure) Disclaimer: I used to publish this book with another account years ago but I already deleted it :)