An enigmatic jewelry case, holding human remains, arrives at the cottage of Sherlock Holmes, enticing him from his retirement refuge in the Sussex Downs. Holmes sets out on the trail of the murderer taunting him, joining forces with one of his former Baker Street irregulars, Tessa Wiggins. The two find themselves battling forces arising from a time before England was a country—when the Celts were fighting for survival.

Though set in 1919, The Celtic Phoenix is steeped in the enigmatic culture of the ancient Celts who reigned over much of Europe three thousand years ago. It was a time when the bond with Nature was strong . . . when people walked in the olde ways . . . and when women were the equals to men as warriors, priests, and poets. The Celtic Phoenix is the journey of three women who rise from the ashes of their past like fearsome phoenixes and shake the rational foundations upon Sherlock Holmes built his life and career.