He tried, naturally, to see if these latter had any minds he could touch—ever since knowing those plant-like Guddus this had become almost automatic with him at sight of any new kind of tree, bush or plant. But he drew a blank here, as he had elsewhere. Those alien growths on Algon might be unique in the universe, he thought.

Hanlon was glad of Auldin's silence as they walked along. It enabled him to get his own thoughts in order, and to try to plan as best he could for this coming interview with Yandor, not knowing what to expect ... except that it would undoubtedly try his abilities to the utmost.

There were some slight traces of fear in his mind, for he was, after all, still a very young and inexperienced man playing a dangerous game. But his success in his first assignment—the dangers he had faced and the victories he had wrested because of his unusual and growing wild talent—thought of them brought back his self-confidence and with it an almost contemptuous view of the dangers here. There was really nothing to fear after all, he told himself. But still....

Hanlon and Auldin came to a place in the street where it climbed a fairly steep hill—there were many such throughout this city—and were nearly winded when they finally reached the top. Still wordless, they were both glad of the chance to stop and rest a moment. Then they started on again, along a much nicer part of the street, rapidly approaching the home of Ino Yandor.

This entertainment entrepreneur (that was, in effect, the nearest approach to a familiar profession of which Hanlon could think) was the one the young secret serviceman's investigations had led him to believe was the first rung on the ladder he must climb to find the knowledge that lay at the top.

"Ah, here's the place," Auldin said at last, as they turned up a sort of cobbled walk leading to the fairly imposing residence. It was an ornately-decorated, two-story house, pentagonal in shape, and with a green-tiled roof, of course. The three sides Hanlon could see were painted in different, though mutually complementary colors. The surrounding lawns were made of the peculiar grass so general here, with its minutely-petalled flower-tips. There were also numerous beds of the strange, native flowers, highly-perfumed, but not heavily blossomed except in the mass.

Hanlon thought he caught large numbers of thought-emanations from animal minds of various kinds, but before he could investigate, Auldin spoke.

"One word of warning. Don't be too eager. Yandor may seem slow thinking and calculating, but don't make the mistake of thinking him stupid. And don't irritate him—he seldom shows his temper, but he is deadly vindictive to those he takes a dislike to. But he is a good employer—and generous to those who serve him well and efficiently."

"Thanks for the tip. I'll be on my good behavior." But Hanlon grinned to himself as he read the reason for that warning in Auldin's mind. If this stranger was spying for Yandor, he would have to make a good report on Auldin.

Then, as the mobster used the ornate knocker, Hanlon tensed himself for—literally—anything.