Shadow Linson and the Secret Society of Coin Holders

Shadow Linson has lived a painfully lonely life for seventeen years, thanks to her parents inexplicably over protective nature.
Everything changes when a near-death-experience leaves her with a mysterious necklace, missing parents, and strangers at her front door.
Shadow suddenly finds herself with friends and freedom like she has never known, but there’s a catch. She must embark on an epic adventure to a hidden island to join the Secret Society of Coin Holders. Their quest is simple; protect society from the monsters they don’t know exist.
As Shadow trains and takes her place amongst the coin holders, she and her new found friends secretly follow the clues her parents left behind. Shadow must unravel a mystery nearly two decades old, that could save her parents lives and Shadows future. Or it could doom them all.