Vermouth is a woman, and she was one of my dad's apprentices when it came to disguises. So, pretty much the only people who would be able to beat her in that regard would the other apprentice and, naturally, my self. I don't know too much about the others...

Yeah, I figured that. The more important you are, the more careful you are to tie up any loose ends. If anything, I bet he wanted to find the jewel so rise up in the ranks.