"Oh," he nodded, "The last... I mean, when I transform. The rest of the time it is invisible, though it is there on my forehead." He pointed to the centre of his forehead, an area that looked no different than the rest of his skin.

"It feels strange if people touch it, but when I transform it is a horn and it feels like... My whole self is focused at the base of it."

It's a strange feeling to explain.