"All the way."
"Pluto?"
"Beyond."
Mark thought that over. "There's no planet in our system beyond Pluto!"
"But there is. Planet X. An eccentricity in the orbit of Pluto indicates there must be a planet beyond. For years astronomers have known this, but no telescope has been able to pick it out."
Mark grinned weakly. "So that's where we're headed. I guess you know it'd be awfully easy to overshoot a mark like that!"
"Not with the Frequency Tuner. I understand very little of it, but the Professor assures me it's a directional finder as well as a power unit."
"Sure, sure. And assuming we locate Planet X and manage to land—what do you expect to find there?"
Janus' eyes were flecked with dancing lights. "What do we hope to find? George Ketrik! And if you know the man at all, you know that means adventure and riches."