Sherlock Holmes is pitted against his deadly adversary Moriarty, in this story written by Sir Arthur Conan Doyle, Holmes and Watson are on the trail to recover a necklace once belonging to Cleopatra which mysteriously disappeared on an expedition to Egypt lead by Professor Moriarty, all those involved have died and the only man who knows the truth and can identify Moriarty is in great danger, with his usual cunning disguises and legendary deduction, Holmes unravels the mystery - and meets his arch rival face to face with his arch rival!

Will Holmes finally get his man or is there another trick up Moriarty's sleeve?