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.
A near-death-experience changes everything, leaving 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 and their quest to protect society from the monsters they don’t know exist.
As Shadow trains and takes her place amongst the coin holders on an elite team, she and her new found friends secretly follow the clues her parents left behind, unraveling a mystery nearly two decades old, that could save her parents lives and Shadows future.