Notes
First published in three volumes in 1973-78.

Publisher's Blurb
Three action-packed adventures in one complete volume

AT THE NARROW PASSAGE
From far in the future comes a hideous warning of destruction – so the Krith leaders scramble to change the present...

NO BROTHER, NO FRIEND
A terrifying message from outer space tells of an invasion in the year 4000 AD that will wipe out all life – so the Kriths form Timeliners: fierce commandos that scud through alternative worlds, battling the present in hopes of changing the future.

VESTIGES OF TIME
The countless parallel worlds, created by the Kriths, are crumbling. The prophecy of catastrophe in the far future is coming true! And that is only the beginning...