After all quests have been completed on a map, the next map will be unlocked. Opening the next map will initiate a countdown for the previous map. After the countdown has ended, the map will be closed permanently. Keep this in mind if you want to explore more and find more hidden treasures.

Don't worry about maps that have been closed permanently. If you can proceed to the next map, it means you have finished all quests on the closed map. And new maps bring new adventures and new stories!