Everyone has heard of Sherlock Holmes.
Fewer know of Mycroft, the older brother.
A very, very few scholars have speculated about a third Holmes boy, Sherrinford. But Morrigan Holmes was lost to history, and that was exactly the way she wanted it. Now her memoirs have been discovered, shedding light on a different side of the Holmes family - a side steeped in bad blood, resentment, and long-kept secrets. In this fourth instalment of the first serialized adventure of Morrigan Holmes, Theodora confronts her past, Sherlock is indelibly marked, and the jaws of London open wide to consume them all.