CHAPTER XXI

THE MYSTERY DEEPENS Sylvia did not know what to say. There were two explanations possible--perhaps more, but two certainly. One was that the Spaniard had hastily changed his costume, or else that there were two young men who had penetrated her disguise, and were conversant at least with the episode of the overturned canoe. And both explanations were feasible. "I--er--I half promised this dance," murmured Sylvia. "I told----" "Yes, and I am he whom you told," was the answer. "He was a----" "Yes, I know. But pardon m…