Sherlock Holmes, wrote his friend and chronicler John H. Watson, was an 'unofficial adviser and helper to everybody who is absolutely puzzled', and as such Holmes came into contact with 'all that is strange and bizarre'. Cases such as THE HOUND OF THE BASKERVILLES or 'The Sussex Vampire' show the great detective dealing with matters which certainly are strange and bizarre; yet in all the sixty cases in the Sherlockian canon, Holmes proves that the supernatural plays no part in the matter under investigation. What if, however, those sixty cases did not tell the entire story? In THE IRREGULAR CASEBOOK OF SHERLOCK HOLMES, we encounter five cases which test Holmes' powers to the limit; strange and bizarre cases involving forces that are not of this world. Missing manuscripts, strange sects, sudden death, and mysterious encounters all lead Holmes and Watson into a twilight world of mystery, magic, and danger, where nothing is commonplace and people are not what they seem. Along the way, the pair travel as far afield as Egypt and Venice, enlist the aid of Holmes' brother Mycroft, investigate a supposed werewolf attack, and are asked for assistance by two masters of the weird tale, M. R. James and Arthur Machen. Skilfully blending the classic supernatural tale with Holmes stories written in the style of Arthur Conan Doyle, THE IRREGULAR CASEBOOK OF SHERLOCK HOLMES will appeal to all those readers who, like Watson, share the great detective's love of 'all that is bizarre and outside the conventions and humdrum routine of everyday life.'