Watermill Press, Mahwah, NJ, 1983.  A Watermill Classic.  ISBN 0-89375-704-7.  MMPB, 247 pages including about the Author.  Wraps show some edge and cover wear, a few rubs, crease at lower front corner; light reading crease along front spine edge; binding tight.  Interior clean and unmarked with tanning pages.  ‘At first, the comet was just a tiny speck in the sky – people scarcely noticed it among the countless other specks.  But swiftly, without a sound, the comet grew inevitably brighter – brighter than the brightest star.  As people continued their lives on earth, the comet came closer, grew bigger, filled the sky.  Until finally, one day, a curtain of green mist closed down upon the world, and the earth ceased to be … for a time.’ (from rear wrap)