Mr. Amber accepts the challenge with a triumphant rubbing together of his hands. "That brown one, eh? Very well. That's a rare volume—Black Letter—Latimer's 'Fruitfull Sermons'—London, 1584. Now, you see." He trots excitedly to a high, wheeled ladder, runs it beneath the "Fruitfull Sermons," climbs up shakily, fetches down the volume and presents it for Percival's inspection: "There! Run your finger over the top of it; that's where dust collects. Ah, not that finger; got a cleaner one? That'll do. Now!"

It is getting dusk in the library, so Mr. Amber clutches the small finger that has rubbed over the "Fruitfull Sermons," and they go to a deep window where young head and old peer anxiously at the pink skin.

"Not a speck!" Mr. Amber cries triumphantly. "Not a speck of dust! What did I tell you?"

And Percival, holding the finger carefully apart from its fellows: "'Strordinary! Simply 'strordinary to me, you know!"

Mr. Amber climbs laboriously up the steps again, and seats himself at the top, and starts dusting all around the "Fruitfull Sermons," and completely forgets Percival, who wanders about for a little and then, hearing a sound, goes to the door.

V

Here was the white-faced youth, our Egbert Hunt, who had grimaced at him from the box of the wagonette. The white-faced youth stood on the further side of the passage, paused beneath a window by whose light he seemed to be examining a small phial held in his hand.

Percival ran forward: "Hallo! Are you a clown, please?"

The white-faced youth bit a pale lip and stared resentfully: "Do you live here?"

"No, I don't," Percival told him. "I've been having tea with Mrs. Ferris."