The Mystery of the Sisyphean Shadow (New Three Investigators)

A killer hides in the shadows – and the shadows take many forms. Step into mysteries that demand courage, discernment, and the will to seek the truth. Conceived and co-written by the daughter of Robert Arthur – the creator of the Three Investigators universe – this restoration of the classic series takes its iconic characters into a new age, with gripping contemporary adventures for young readers who crave meaning, want to share in the growth of characters they admire, and seek a world they can return to again and again. IIn the nineteenth book of a 26-book story arc, Jupiter, Pete, and Bob are thrilled to reconnect with their old friend Chang Green, who they haven't seen in years. Chang and his Aunt Lydia are in Los Angeles, seeking the Investigators' help with a mystery surrounding Big Dragon Labs, a powerful pharmaceutical company. Henry Lui, a top chemist, has died under strange circumstances, and his mysterious death seems connected to a dangerous drug he had created and that he was attempting to destroy – a drug that turns people first into docile sheep and then into violent beasts.