"All the other caves are practically beyond high-water mark," he said. "What Geoffrey says is correct and our forgetfulness has saved the hangman a job. But wouldn't it be well to make sure?" Tchigorsky was of that opinion. "No need to alarm the household," he said. "Geoffrey shall procure a lantern, and I will come and assist in the search. I don't want to be seen just yet; but it really does not much matter, as there is no need for further concealment. If these men are drowned, they are drowned, and there is an end of the matter. In any case, we have the chief culprit by the heels." It was possible, after all, to reach the vaults without being seen. Geoffrey procured a lantern and the party set out. When they were at the bottom of the steps they could hear the sea slashing and beating on the walls and sides of the vault. A great wave slipped up as the door opened. Geoffrey bent down with the lantern in his hand. For some time he searched the boiling spume without success. "Can you see anything?" asked Tchigorsky. "Nothing whatever," said Geoffrey. "It is possible that they might not---- Ah!" He shuddered as he raised the light. The spume ceased to boil for a moment, then a stiff, rigid hand crept horribly from the flood. A brown sodden face followed. There lay one of the Asiatics past the power of further harm. "You have seen one," Tchigorsky shouted, "and there is the other." Another face came up like a repulsive picture on a screen. A minute later and the two bodies were dripping on the steps of the vault. CHAPTER LV A SHOCK FOR THE PRINCESS It was not a pleasant task, but it had to be done. Fortunately it was possible to do everything discreetly and in order, for the vaults were large, and there was not the slightest chance that any of the household would come near. The bodies were laid out there and the key turned upon them. Geoffrey looked at his companions and inquired what was to be done next. "Inform the head of the house and send for the police", Tchigorsky said; "so far as I can see, it will be impossible to keep the matter a secret. Nor are we to blame. Those men came here for no good purpose, and we took steps to prevent them from entering the house. "Unfortunately, we forgot there would be an exceptionally high tide to-day, and consequently they have paid the penalty of their folly. But we can't bury these two fellows as we did the others." "Hadn't we better search them?" Ralph suggested. "They came in response to the note sent them by their mistress. The note was opened and read. One of them is sure to have the letter on his person." "Then let the police find it," Tchigorsky said promptly. "It will be the link in the evidence that we require. When you and I come to tell our story, Ralph, and the police find that letter, the net around Princess Zara will be complete. I have only to produce that diary and the case is finished."