“I thought you were a newshound, Mr. Queen. Can’t stand those guys ― they’ve made my life miserable. But what are we standing here for? Come on up to the house.”

“Some other time, Mac,” said Laurel coldly, taking Ellery’s arm.

“Oh, that murder foolitchness. Why don’t you relax, Laur?”

“I don’t think I’d be exactly welcome at your stepfather’s, Mac,” said Ellery.

“You’ve already had the pleasure? But I meant come up to my house.”

“He really means ‘up,’ Ellery,” sighed Laurel. “All right, let’s get it over with. You wouldn’t believe it secondhand.”

“House? Up?” Feebly Ellery glanced aloft; and to his horror the young giant nodded and sprang up the rope ladder, beckoning them hospitably to follow.

It really was a house, high in the tree. A one-room house, to be sure, and not commodious, but it had four walls and a thatched roof, a sound floor, a beamed ceiling, two windows, and a platform from which the ladder dangled ― this dangerous-looking perch young Macgowan referred to cheerfully as his “porch,” and perfectly safe if you didn’t fall off.

The tree, he explained, was Quercus agrifolia, with a bole circumference of eighteen feet, and “watch those leaves, Mr. Queen, they bite.” Ellery, who was gingerly digging several of the spiny little devils out of his shirt, nodded sourly. But the structure was built on a foundation of foot-thick boughs and seemed solid enough underfoot.

He poked his head indoors at his host’s invitation and gaped like a tourist. Every foot of wall-and floor-space was occupied by ― it was the only phrase Ellery could muster ― aids to tree-living.