The Rabbit of Caerbannog

The case against Charles Augustus Magnussen leads to a tense standoff, a shooting, and a lot of secrets coming out. It turns out there is a lot more to John Watson than anyone knows -- and that includes his husband, a man who can sniff out a lie at twenty paces, and his brother-in-law, who is the British Government.

The denoument of the Magnussen case leads to John recounting another adventure from his army days, one which led to the creation of one of the army's best-kept secrets.