Ah, I see. It's normal to be want to be protective of family. Especially of your children.

[He frowns slightly - Tilly might not be his son by blood, nor had any of his apprentices been, but they had all felt like family. He'd been a way for quite a while now, hadn't he?]

You will know Caliborn by his skin, if nothing else. It's green and somewhat scaled... However, also note that his sister is here as well, Calliope, and she is a lovely person indeed. They may look alike at first, and I would hate for you to misjudge Calliope, she is a good friend.

Regardless, the trouble that Caliborn causes seems to be arbitrary for the most part, at least to my knowledge.