H. Beam Piper's classic novella about alternate timelines and the complications that can arise from journeying between parallel worlds. Miracles to order was a fine way for the paratimers to get mining concessions--but Nature can sometimes pull counter-miracles. And so can men,...
This collection of literature attempts to compile many of the classic works that have stood the test of time and offer them at a reduced, affordable price, in an attractive volume so that everyone can enjoy them.