"At first I heard the sound of voices," he answered quickly. "One was the voice of a woman, which I recognized. It was the Countess. The other was the Count.

"'Giulia,' I heard him say, as they entered the room, 'I don't see why you should want to go. It's dangerous. And besides, it's none of our business if your father lets his yacht be used for such a purpose.'

"'But I want to go, Alex,' she said. 'I will go. I'm a good sailor. It's father's yacht. He won't care.'

"'But what's the use?' he expostulated. 'Besides—think of the danger. If it was our business, it might be different.'

"'I should think you'd want to go.'

"'Not I. I can get all the excitement I want in a motor-boat race without risking my precious neck pulling the chestnuts out of the fire for someone else.'

"'Well, I want the adventure,' she persisted, petulantly.

"'But, Giulia, if you go tonight, think of the risk—'

"That was the last I heard as they left the room, still arguing. Evidently, someone is going to pull off something tonight."

It did not take Kennedy long to make up his mind what to do next. He left the cellar hurriedly and in the laboratory hastily fixed up a second heavy and bulky package similar to that which he had taken down to the revenue cutter earlier in the day, making it into two parcels so as to distribute the burden between us.