The Space Egg
Synopsis: It is probably the late 1950s and a privately financed rocket-plane hits ‑something- in the upper atmosphere. When the plane lands, the pilot, Jack Fayburn, appears to be ok despite two holes in the airplane and one through his pressure suit. As soon as he exits the plane, it is obvious that something has changed him but just in case the reader is slow, he assaults one of the ground crew before leaving. The only clue is what looks like a smashed china egg, the space egg of the title.