The Darkest Dawn

Arthur meant to reach out to him, check him for injuries, but halted in his tracks when, for the first time, he noticed that it was a small girl that was cradled in Merlin's arms. "Merlin, who is this?" Merlin's grip around the child tightened, as though he feared she'd be taken from him. "She's mine," he said hoarsely. "Her name is Aithusa."