Henderson knows fairies from fairy-tales don’t have magic to seduce humans or at least not that he’s heard, but he wonders if this is some sort of spell or real but nevertheless, he can’t help but admire you like this. And now he knows for sure he can’t let you leave, he can’t let you go or let you escape, you’re too precious, more precious than the treasure he seeks out to find that he’d gladly show off. He knows he’d earn a pretty penny from you but prefers to have you more than piles of gold.