“Oo, sir! Mrs. Russell! You don’t think as how she done it, do you?”

“Done what?” asked Roger gravely.

“P-pushed Mrs. Vane over the cliff! They hated each other like wild cats, they did. Many and many’s the time I’ve heard the missis giving it to the master about Mrs. Vane. ‘If I get hold of her, I’ll give her what-for!’ she says. ‘I’ll spoil her looks for her! I’ll show her she can’t⸺’ ”

“No, no!” Roger interrupted hastily. “Good gracious, no! You mustn’t think anything like that. I want the shoes for—for quite a different reason.” And he fled for the front gate.

The maid looked after him with an air of distinct disappointment.

The newspaper parcel under his arm, Roger made at top-speed for the point on the cliffs where the second stair-way emerged. It was only a matter of form to try the shoes he was carrying into that second lot of footprints; he knew beyond any shadow of doubt that they were going to fit. Within a quarter-of-an-hour of leaving the lady’s own front door his confidence was justified: her shoes fitted as perfectly into the tracks as if they had made them—which Roger had very little doubt they had! With a crow of triumph he turned round and scurried up the stairs again two at a time. The Ludmouth Bay Mystery was as good as ended.

Half-way across the open ground toward the house he caught sight of a large and portly figure turning in at the front gate from the road. Judging correctly that the mistress of the household was returning, he changed his direction abruptly and made for the little ledge, whistling loudly (and quite unnecessarily, as Anthony pointed out later with some heat. “Dash it all, man, I haven’t known the girl for twenty-four hours yet. That sort of thing makes a chap look such an ass!”) as he approached within view of it.

“Victory! Victory!” he exclaimed dramatically to the startled couple beneath him, waving the shoes above his head. “And here are the spoils—your prize, fair lady! You might return them to the owner for me some time, will you? Or rather, to the owner’s parlour maid for preference. Catch!” And tossing the shoes down on to the ledge below, he took a standing jump and hurtled through the air in their wake.

“Roger, you’ve discovered something!” Margaret cried, as the victorious one landed with a thud perilously near her feet. “What?”

“I say, you haven’t got to the bottom of it, have you?” demanded Anthony excitedly.