Quest: Tutorial 3 Mining

Once you will meet Sir Edmunds, the Spelunking Ghost that asks you to find his bones beneath rocks. The rocks he mention are those in first island. To quicken this quest progress, you can assign all your bunnies to the corresponding mine. As soon there is no single rock, the quest is finished.

This quest might intended to show that rocks are not replenish-able like trees so you need to be careful when spending golds.