Short e-books (30min to read) of Robert Silverberg

Getting specimens for the interstellar zoo was no problem--they battled for the honor--but now I had to fight like a wildcat to keep a display from makin...

_The planet itself was tough enough--barren, desolate, forbidding; enough to stop the most adventurous and dedicated.

_Dekker, back from space, found great physical changes in the people of Earth; changes that would have horrified him five years before.