In Keeper of the Keys, the final installment of Earl Derr Biggers' beloved Charlie Chan series, the astute Hawaiian detective faces one of his most baffling cases yet. Set against the picturesque backdrop of Lake Tahoe, this gripping mystery is a testament to Chan's unparalleled skills and unyielding determination.

When renowned scientist Dr. Harold Riddle is found murdered in his secluded mountain home, suspicion falls on the eclectic group of guests staying at a nearby lodge. Each character harbors secrets and hidden motives, from the enigmatic French maid to the disgruntled assistant, the glamorous Hollywood actress to the mysterious Chinese cook. As the intricate web of lies and deception unravels, it becomes clear that the key to solving the murder lies in understanding the complex relationships among the suspects.

Charlie Chan, with his trademark wisdom and quiet persistence, meticulously pieces together the clues that others overlook. He delves into the victim's past, uncovering a tale of betrayal, jealousy, and revenge that spans continents. The tension mounts as Chan navigates a labyrinth of red herrings and false leads, all the while maintaining his unflappable demeanor.

"The Keeper of the Keys" showcases Biggers' masterful storytelling and his ability to create vivid, memorable characters. With its clever plot twists and evocative setting, this novel is a fitting farewell to one of literature's most enduring detectives. As the final pieces of the puzzle fall into place, readers will be left marveling at Chan's brilliance and the intricate tapestry of human nature that Biggers so deftly weaves.

Perfect for fans of classic mysteries and intricate whodunits, Keeper of the Keys is a captivating and satisfying conclusion to the adventures of Charlie Chan, a detective whose legacy continues to endure.