When Buried Pasts Are Unearthed

Au, Harry and Percy suffer greatly from their separate wars. They individually join an American spying agency named S.H.I.E.L.D. Kraken (Percy) and Basilisk (Harry) become well-known legendary rivals within the agency until they are partnered together for a mission and realise that they are the perfect team. They decide to work together...but how well can they hide their secret pasts? Especially when the Avengers get involved.