The Hunchback of Westminster by William le Queux

For a moment all was confusion. Colonel Napier sprang to his feet with an angry gesture, and even Lord Cyril Cuthbertson rose and crossed over to the place where Fotheringay was sitting near the fire, and consulted him in low and anxious tones.

Curiously enough, Casteno appeared to be the least perturbed of any of us, although he had made such a dramatic entry. Somehow he seemed to take his position in that conference as a matter of right, and when he saw that none of the others were prepared to talk to him on any terms, but were determined to treat him as a bold, impertinent interloper, he swung round from them and stepped up to my desk, where I sat idly playing with a pen.