"Apparently it is associated with something disagreeable in the man's mind," soliloquised Paul, pacing the pavement and keeping a sharp look-out for Sylvia, "perhaps with death, else the effect would scarcely have been so powerful as to produce a fainting fit. Yet Aaron can't know my mother. Hum! I wonder what it means."

While he was trying to solve the mystery a light touch on his arm made him wheel round, and he beheld Sylvia smiling at him. While he was looking along the Embankment for her coming she had slipped down Norfolk Street and through the gardens, to where the wrestlers clutched at empty air. In her low voice, which was the sweetest of all sounds to Paul, she explained this, looking into his dark eyes meanwhile. "But I can't stay long," finished Sylvia. "My father is still ill, and he wants me to return and nurse him."

"Has he explained why he fainted?" asked Paul, anxiously.

"No; he refuses to speak on the matter. Why did he faint, Paul?"

The young man looked puzzled. "Upon my word I don't know," he said. "Just as I was showing him a brooch I wished to pawn he went off."

"What kind of a brooch?" asked the girl, also perplexed.

Paul took the case out of his breast pocket, where it had been since the previous day. "My mother sent it to me," he explained; "you see she guesses that I am hard up, and, thanks to my father, she can't send me money. This piece of jewellery she has had for many years, but as it is rather old-fashioned she never wears it. So she sent it to me, hoping that I might get ten pounds or so on it. A friend of mine wished to buy it, but I was anxious to get it back again, so that I might return it to my mother. Therefore I thought your father might lend me money on it."

Sylvia examined the brooch with great attention. It was evidently of Indian workmanship, delicately chased, and thickly set with jewels. The serpent, which was apparently wriggling across the stout gold pin of the brooch, had its broad back studded with opals, large in the centre of the body and small at head and tail. These were set round with tiny diamonds, and the head was of chased gold with a ruby tongue. Sylvia admired the workmanship and the jewels, and turned the brooch over. On the flat smooth gold underneath she found the initial "R" scratched with a pin. This she showed to Paul. "I expect your mother made this mark to identify the brooch," she said.

"My mother's name is Anne," replied Paul, looking more puzzled than ever, "Anne Beecot. Why should she mark this with an initial which has nothing to do with her name?"

"Perhaps it is a present," suggested Sylvia.