Books with title The Mystery of the Hidden Key

Be careful what you wish for. Winnie’s arrival from boarding school to sunny Sydney was as far from an uplifting homecoming than she could imagine. She’s the last Keeper of the Crone’s poisonous Stone and must hide the witch-demon’s stolen possession before it’s too late. Exposed and vulnerable, Winnie’s enemy is poised to break free, her followers swarming on the hunt. Legend forecasts the final chapter nears, heralding the Stone’s triumphant return and the obliteration of the feeble, ailing Trinity who’ve stood in their way for a thousand years. But allies exist in the most unexpected places. For the first time in millennia, the Sacred Trinity are recruiting. Satan’s mistress is coming to take back what’s hers and just maybe, Winnie and her friends will be ready. This is no fairy tale.

Mellor has moved to the coastal village of Arnside and invites Pixie, Billie and Bruno for a visit. Soon after they arrive they find a message in a bottle in the style of a riddle. This leads them to search the area whilst solving the puzzle. Could it be treasure? Where could it be? How did it get there? AND what is it? Join Pixie, Bruno her bouncy boxer and her friends Billie and Mellor as they go in search of adventure, treasure and mystery!

1966 World Publishing hardcover. After discovering a treasure map scratched on an old telescope, Shandy and Jib enlist the aid of their old friend Jackson and his houseboat to track down the hidden treasure. The adventurers find themselves shipwrecked on the Florida Gulf Coast, pursued by pirates, and stuck in a swamp before finally encountering the strange sea creature that guards the treasure.