This etext was produced from the 1963 book publication of the story. Extensive research did not uncover any evidence that the copyright on this publication was renewed. Since the publication of BRAIN TWISTER (Pyramid Book F-783), Mark (Laurence M. Janifer) Phillips (Randall Philip Garrett) has, or have, undergone several changes. In order to keep the reader posted on the latest developments regarding this author, or these authors, he, or they, has, or have, passed on the following details:…
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