"I don't know. It might have been either."
Hand-in-hand, the two girls hurried along.
"It may be my fancy," said Tuppence suddenly, "but I feel as though there was some one behind us."
"Hurry!" murmured the other. "Oh, hurry!"
They were now at the corner of Carlton House Terrace, and their spirits lightened. Suddenly a large and apparently intoxicated man barred their way.
"Good evening, ladies," he hiccupped. "Whither away so fast?"
"Let us pass, please," said Tuppence imperiously.
"Just a word with your pretty friend here." He stretched out an unsteady hand, and clutched Jane by the shoulder. Tuppence heard other footsteps behind. She did not pause to ascertain whether they were friends or foes. Lowering her head, she repeated a manœuvre of childish days, and butted their aggressor full in the capacious middle. The success of these unsportsmanlike tactics was immediate. The man sat down abruptly on the pavement. Tuppence and Jane took to their heels. The house they sought was some way down. Other footsteps echoed behind them. Their breath was coming in choking gasps as they reached Sir James's door. Tuppence seized the bell and Jane the knocker.
The man who had stopped them reached the foot of the steps. For a moment he hesitated, and as he did so the door opened. They fell into the hall together. Sir James came forward from the library door.
"Hullo! What's this?"
He stepped forward, and put his arm round Jane as she swayed uncertainly. He half carried her into the
