When Yasmine gets the opportunity to travel to summer horse camp with Flint, her black pony, and Oliver, a boy she has a huge crush on, it seems her dreams have come true. She and Oliver are becoming good friends, and the horseback riding is wonderful, but trouble is brewing at Black Horse Farm. When a girl with an unusual necklace gets attacked, it takes all Yasmine's intuition, bravery, and riding skill to unravel the mystery before it's too late.