Roddy would manage to get away in the end by turning into a rat and losing himself in the swarms of rats that lived in the underground tunnels of the tube, not the sewers, thank you very much. However, the pursuit of the security guards would do their job, and that would be the last time he'd show up there until the time to meet up and keep the witches out came, and then he would mostly feel secure in showing up because he knew he'd have more of Hillingdon there.