The Chest Quest
The Chest Quest is a time-limited event, during which you need to help Alfred progress through an Undersea map. To do so, you need to beat levels and complete special goals that will be indicated in the event window.
With each goal completed, Alfred moves up the map a single space. Once you reach certain milestones, youβll get treasure chests hiding precious rewards, including Coins, Lives, Boosters, or Extra Cards. Reach the end of the map and you can claim a huge Chest containing even more sumptuous prizes!
The map contains twenty-one spaces (which means you've got twenty-one goals to complete), while treasure chests are located after the 7th, 11th, 15th, and 21st tile. All rewards are redeemed by opening these treasure chests.
You can complete goals playing regular levels, including those in the Mystery Cave, if both events are running simultaneously. When you reach the end of the Chest Quest treasure map, you can start on a new one, gaining a whole new batch of lovely rewards.