Two of a Kind

(Crossover fanfic, Bucky Barnes x Hadrian Potter AU)
Young was the Kelpie, Master of the Undead, as he met his Equal and Soulmate, young for a Fae at least.
Fast, he befriended the young soldier, became Comrade to all those the Boy deemed Family, and soon, part of the family himself.
Until the Soldier fell into the depths from a Train, leaving the Kelpie to mourn, and as the Soldier was found and got his mind wiped, so lost the fae his Memories too.
All he could remember was his name, and the face of the Person he so cherished.
So, as he couldn't remember his own true face, he turned into a replica of the soldier, and vanished into the coldest of the darkest of nights, in hope of a Salvation for his heart, seventy endless years long.
Then he met the Soldier again.
But was the man still his?