Two years before Sherlock met John he got into quite an odd case that ended up with him "donating" to a laboratory for people who wanted biological kids without having a significant other. It was the price for a piece of information he really needed. Five years later Sherlock and John are living at 221B Baker St. As a couple. They've only been together two weeks when Lestrade reveals a quite puzzling case indeed. The case of Eris Holmes. (I'll try to update as much as possible but it depends on my schedule. Disregard the looks of the little girl on the cover, I found it on Pinterest and I thought it was super cute UwU. But Eris actually has curly black hair like Sherlock and Hispanic-like skin.😁)