Welcome to Covington Cove Island... where timeless charm and secrets intertwine, and every wave whispers a tale of hidden hearts and summer dreams.Sierra Parker's summer doesn't start until two people arrive: her lifelong best friends, Jude and Sawyer.This summer feels different, though. Sierra's older sister, Echo, is off to college in the fall; Sawyer has been withdrawing a lot; and Jude is acting... flirtatious?Sierra's not sure what to make of it all yet, but knows one thing-the death of the island matriarch, Eleanor Covington, is hitting her harder than expected when it brings up old emotions from her mother's passing a few years ago.So when she's sent a scavenger hunt by the recently departed Eleanor, she jumps right in, thinking it's the perfect distraction. And she wants her besties to do it with her.Jude is all in, ready to go for every quest. But Sawyer is still holding back, and she can't figure out why.Will Eleanor's riddles bring Sierra on an adventure of a lifetime?And can Sierra figure out why both boys are acting so differently this year, without getting her heart broken in the mean time?