I heard yowling as Crookshanks made a distraction, knocking over a storage cabinet that toppled and created a noisy clatter, which I realized was the perfect distraction as I blew a hole in the wall large enough for me to hop onto my broom and fly out, getting past the anti-disapparating wards to escape. Crookshanks! I wanted to yell, but realized it would give me away at this point, and had to trust that he could fend for himself as I made it out into the dusky evening.