Dark waters hide darker secrets.NOTE: This book was previously published as part of the megabook Secrets All Unfold.The sea around Key of Crowns is darker than any I've seen or even read about.A final resting place for countless dead, the island is a perpetual battleground for the factions vying for control. Our quest has led us here for one purpose.Stop the bloodshed. The only way to do that is to win the war. None of us high school kids know the first thing about fighting one, but my brother and the strange spider yokai he's befriended have a plan. Along with two individuals we never expected to meet on that island, all we can do is claim our victory or fail.Can we win the fight, or will Key of Crowns claim our souls instead?