He had lost like the rest of the gods. He shouldn't have thought he was any different. Hades was lightly rubbing his head after landing and opened his eyes to see the horse walking towards him. Almost as if the horse was concerned. He continued to rub his head when the horse communicated with him.
"Uhhhhhh, Hello." He said aloud. Perhaps he was going insane, spent too much time in the underworld and coming to the surface was effecting him.
But that wasn't it. 
Hades stood up and tried to recall what Apollo had called her.... No luck.
"What is your name?" He asked casually as if he wasnt aware in the past. He probably shouldnt be talking to horse and looked around at the other gods before returning eye contact with Alpha.