This book is an edited version of the original notes of Dr. Watson, lost many years ago and only recently found. Before us is the same faithful companion and assistant of the world's greatest detective, a genius whose name terrified the most desperate and cunning criminals - Mr. Sherlock Holmes!

The reasons for the mysterious train crashes on the railways of Britain are inexplicable, terrible their consequences. To get to the bottom of what happened, Sherlock Holmes and Dr. Watson decide to take the miraculously surviving locomotive along the same path as the dead crew of drivers. But the implementation of this plan threatens the famous detective and his devoted friend with death... Unraveling one of the most complex and interesting cases, the inimitable Sherlock Holmes, together with Watson, sets off on a journey full of adventures and dangers to Egypt - in search of an ancient manuscript that keeps the sinister secrets of the ancient priests. But this time Holmes' deductive method leads to a completely unexpected result...