"The means of safety, madame, seem to me to dangle at the end of a rope."

The woman's eyes gave a flash of triumph.

"Ah!" she exclaimed. "I had forgotten that. In the press of other things it had been swept out of my mind. A professional acrobat like yourself should make light of a task like that. The way is all clear for the experiment. But when?"

"What better time could we have than tonight?"

"Tonight. Impossible. There are matters to be got ready. My absence at this hour would attract attention. If I could only be in two places at once!"

"So you can," Balmayne said coolly. "I have taken the liberty to borrow the only machine in London that permits you to do that seemingly impossible feat. Put that long cloak over your dress and come with me. It is not your cloak, but it does not matter. I pledge my word that you shall be back here at the end of an hour--long before the performance is over. Come."

There was no further hesitation. This was an adventure after the woman's own heart. With the purloined cloak covering her from head to foot she passed down the steps and into the roadway. Nobody noticed her, for the spectacle was not a very uncommon one. Under the shadow of the portico a little way off stood a motor, watched by a nightbird who would have done anything for a few coppers.

"I like this," Leona Lalage exclaimed, "it braces the nerves. If those people in New York only do as they promise I shall be free yet. A little courage and I shall pluck safety from the Corner House yet."

The motor passed along swiftly in the darkness. Inside the opera house many people noticed that Countess Lalage's box was only tenanted through the second act of the new opera by a very pretty girl in white, with no ornaments in her hair. Hetty, on the other hand noticed nothing at all but the stage; she had actually forgotten that her employer was not there. The opera was a rare treat to her, and she revelled in music.

There was a veritable scene of triumph at the end of the third act, and whilst the curtain was raised for the second time Countess Lalage and her companion returned. They strolled into the box with the calm air of people quite accustomed to this sort of thing; they might have been merely flirting outside.