After Sebastian's Uprising, things had gone back to normal for the Lightwoods & Fairchilds. They got married and had kids. But an old enemy has risen. A son of Lucifer has survived. When Shadowhunters start going missing everyone is on high alert. In the midst of all this, an orphan arrives at the New York Institute and changes the course of events. OC/OC, Malec, Clace, Sizzy etc.

Agent Catherine "Ches", an ex HYDRA experiment, is one of SHIELD's top agents & after the New York incident, joins the Avengers to fight against their new enemy, the manipulative Slash. She meets Bucky, Cap's old friend and the two click instantly. But as time flies, Cat realises their joint pasts could mean something. Bucky/OC, Capsicoul etc. Post CATWS, may not be TTDW compliant

Tatiana Beech is a werewolf, a friend of Derek Hale's and lives life alone in the UK. That is until Derek comes looking for her saying he needs her help. An Alpha Pack has come to Beacon Hills. So when she leaves for Beacon Hills, her friend Jeremy follows her. How will he react to her secret and will love blossom? And what happens when Tatiana meets the head alpha? OC/OC, Sterek