Centaur Field

Centaur Field was a virtual representation of one of Kassandra's genetic memories, relived by Layla Hassan through the portable Animus HR-8.5.

Riddle
''Look for a stone centaur in the middle of a pond in the Plains of Flax. Walk in the direction it faces until another centaur points you in a new direction. Though it will be difficult as the fog gets thicker, fear not, for I will be safe inside a cave of treasures waiting for you to find me.''

Outcome
Kassandra found and recovered the treasure.

Reference

 * Assassin's Creed: Odyssey