Dr. Henry Mudge undergoes a striking personality change when he discovers a mathematical formula—"Equation C"—that defines a mysterious negative dimension. He is instantly transported to any location in the solar system by merely thinking of it—even when he doesn't want to.
Only the one
About 15 -20 pages of story. The rest is bio and info about other books. Good story, just wish there was more if it.
You'll be at the end of this story before you realize it. This is a thoroughly engrossing tale. My only gripe is with the ebook; there are words peppered throughout the text that are linked to an included glossary. I found it compulsive to click the links.