Thanks! You've completed the Azure Palace, hence the path the the South. Note that there's 3 spells hidden within that palace, one of which will help you in the southern land, and there are 2 spells in the North field. Your next step (Red Fruit) will be done as you solve the mysteries of the Calming Monastery (the palace on the river in the north lands), so the Monastery is your next destination. If you're still stuck after this I can tell you exactly what to do on here