Indeed. Oooh what if a mage was cloaked from John and was at the house in the crowd to just watch on to see if Kay was the real deal as word was getting round the downworld of a living phoenix and how demons wanted her, and that's how he decided to take her for his own gain? Giving John and co an ultimatum of some kind. Maybe like, John needs to do something for them to get Kay back or he's selling her to the demons as there's a hefty price tag on her head? A bit like that episode of his solo show when the mage wanted John to get rid of a dog demon for Geraldine's soul.