The greatest detective of them all is back...

'About to spring out upon my appalled senses, lurked all that was vaguely horrible, all that was monstrous and inconceivably wicked in the universe'.

A dense yellow fog descends upon London. Tricksters, thieves and murderers stalk their prey undetected. Lawlessness abounds but it is no match for Sherlock Holmes' penetrating mind. For even in the gloom Holmes sees and observes everything...