Hidden Treasure

When Bo Delafort finds treasure on the muddy foreshore of the River Thames, her life turns upside down. A solid silver circle, encrusted with pearls and edged in rubies, the jewel is worth a lifetime of comforts and security such as her family has never known. But the magic of the river runs deep in this treasure, and when its reappearance is discovered by Dr Muncaster, a man who will go to any lengths to reclaim it, Bo is plunged into a centuries-old mystery with a dark secret at its heart.