Star-Crossed Lovers

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

Riddle
''My lover lived in the Petrified Valley and I, in the Ancient Pearl. To Eresos I had to go in order to see my girl. But there was a sonorous crack halfway through, and blue was what I reaped. The wooden behemoth groaned and creaked, and at the bottom of the river we began to sleep.''

Outcome
Kassandra found and recovered the treasure.

Reference

 * Assassin's Creed: Odyssey