I had not time to continue. I felt Poirot's hand on my knee, as he whispered excitedly:
"Look, Hastings, look. His trick with the bread! Number Four!"
Sure enough, the man at the next table to ours, his face unusually pale, was dabbing a small piece of bread mechanically about the table.
I studied him carefully. His face, clean-shaven and puffily fat, was of a pasty, unhealthy sallowness, with heavy pouches under the eyes and deep lines running from his nose to the corners of his mouth. His age might have been anything from thirty-five to forty-five. In no particular did he resemble any one of the characters which Number Four had previously assumed. Indeed, had it not been for his little trick with the bread, of which he was evidently quite unaware, I would have sworn readily enough that the man sitting there was some one whom I had never seen before.
"He has recognised you," I murmured. "You should not have come down."
"My excellent Hastings, I have feigned death for three months for this one purpose."
"To startle Number Four?"
"To startle him at a moment when he must act quickly or not at all. And we have this great advantage—he does not know that we recognise him. He thinks that he is safe in his new disguise. How I bless Flossie Monro for telling us of that little habit of his."
"What will happen now?" I asked.
"What can happen? He recognises the only man he fears, miraculously resurrected from the dead, at the very minute when the plans of the Big Four are in the balance. Madame Olivier and Abe Ryland lunched here to-day, and it is thought that they went to Cortina. Only we know that they have retired to their hiding place. How much do we know? That is what Number Four is asking himself at this minute. He dare take no risks. I must be suppressed at all costs. Eh bien, let him try to suppress Hercule Poirot! I shall be ready for him."