Britslebane looked around curiously to determine exactly why Cas was running and was rewarded with the answer as he looked back he saw a Chimera. Whoa, he hoped it wasn't one that could breath fire, that would be an enormous pain. He would've liked to take a closer look... but he also didn't want to die. So he quickly ran after Cas, and having quickly analyzed the way she ran as inefficient and likely leading to tripping, he swooped her up and continued running towards what appeared to be the distant outline of a building, hopefully the tower. He hoped she didn't mind being picked up, some girls were weird though so who knows.