In Red Leech, Sherlock Holmes is on the cusp of adulthood but already struggling with secrets from his past. His mysterious tutor, Amyus Crowe, keeps dangerous knowledge hidden. When a notorious killer—rumored to have been hanged in America—turns up alive in Surrey, rumors swirl that Crowe may be involved. Sherlock, determined to unearth the truth, follows the twisted trail from England to America, stepping into a world of peril, deceit, and deadly conspiracies. As he races to expose the lies, he must balance the light of justice against shadows of betrayal—questioning how far he will go when the price of truth is life itself