Sherlock Holmes agrees to solve the greatest mystery of all time: What ever became of the very first Unicorn? Along the way he encounters an eccentric inventor who claims that his invention simply walked out of the lab, a Scotsman whose lochs have somehow vanished, a mysterious lady in search of a missing journal, an ages old, secret society involved in Alchemy, Astronomy, and Horology, and more.
Each new case that crosses the threshold of 221-B, leads Holmes and Watson deeper into a tangled labyrinth of questions and answers that all weave together like the threads of a medieval tapestry, revealing a picture and a solution that none of them could have ever imagined.
