Frobisher was taken completely by surprise.

"No, I see that you didn't," Hanaud went on. He took up his pen and placed a red spot at the edge of the hoop close by the butt.

Jim recovered from his surprise. Madame Le Vay's ball was the spot from which the start was to be made. The plan after all was not so ill-devised, if only Ann could have got to the ball unnoticed. Masked and in fancy dress, amongst a throng of people similarly accoutred, in a house with a garden, no doubt thrown open upon this hot night and lit only by lanterns discreetly dim—she had thus her best chance of escape. But the chance was already lost. For Hanaud laid down his pen again and said in ominous tones:

"The water-lily, eh? That pretty water-lily, my friend, will not dance very gaily to-night."

CHAPTER TWENTY: Map and the Necklace

Hanaud turned his map round and pushed it across the table to Jim Frobisher.

"What do you make of that?" he asked, and Jim drew up a chair and sat down to examine it.

He made first of all a large scale map of Dijon and its environments, the town itself lying at the bottom of the red hoop and constituting the top of the handle of the tennis racket. As to the red circle, it seemed to represent a tour which some one had made out from Dijon, round a good tract of outlying country and back again to the city. But there was more to it than that. The wavy dividing line, for instance, from the top of the circle to the handle, that is to Dijon; and on the left-hand edge of the hoop, as he bent over the map, and just outside Dijon, the red mark, a little red square which Hanaud had just made. Against this square an hour was marked.

"Eleven a.m.," he read.