The Temperment of Time (Prolouge)

Merlin has waited for Arthur return for to many lifetimes. Unable to find him alone, he has asked the headmasters of Hogwarts School of Witchcraft and Wizardry to aid him in his search for centuries.

When Albion's need is greatest, will Merlin be able to convince a recent Hogwarts graduate that he is the once and future king before it's too late?