Oridys’s Rise

Oridys’s Rise is a sorcerer’s tower on the eastern side of the Weeping Peninsula. The door is sealed, and the statue in front of it carries a short riddle: seek three wise beasts.

The beasts are spectral turtles hiding around the tower. Hit all three and the seal breaks. Inside waits a Memory Stone, which gives you one more slot for spells, so this is one of the most valuable puzzles in the early game for any caster.