He drew out a pocket-book and passed over towards her a little wad of notes. She took them without a moment’s hesitation. Her eyes, as she thanked him, were filled with gratitude.

“It is so kind of you,” she murmured. “We never have any hesitation in accepting money. May I know your name?”

“It is not necessary,” the Professor answered. “You can enter me,” he added, as he held open the door for her, “as a friend—or would you prefer a pseudonym?”

“A pseudonym, if you please,” she begged. “We have so many who send us sums of money as friends. Anything will do.”

The Professor glanced around the room.

“What pseudonym shall I adopt?” he ruminated. “Shall I say that an oak sideboard gives you five hundred dollars? Or a Chippendale sofa? Or,” he added, his eyes resting for a moment upon the little box, “a black box?”

The two girls from the other side of the table started. Even Quest swung suddenly around. The Professor, as though pleased with his fancy, nodded as his fingers played with the lid.

“Yes, that will do very nicely,” he decided. “Put me down—‘Black Box,’ five hundred dollars.”

The girl took out her book and began to write. The Professor, with a little farewell bow, crossed the room towards Quest. Lenora moved towards the door.

“Let me see you out,” she said to the girl pleasantly. “Don’t you find this collecting sometimes very hard work?”