Tom blinks a moment, and then assumes a more relaxed mien. He's known Aziraphael a while now, after all, and he no longer has any need to fear angels.

"I shan't then, and I thank you for it." Then he grins. "No house this time, eh? The ending has come all the same."

He hasn't gotten a good look at Blodwen. He assumes she's dead. That's his most fervent hope, anyway.