Ringworld's Children
Ringworld's Children is a 2004 science fiction novel by American writer Larry Niven , the fourth in the Ringworld series set in the Known Space universe . 
<triplet> Ringworld's Children <subj> 2004 <obj> publication date <subj> Larry Niven <obj> author <triplet> Larry Niven <subj> Ringworld <obj> notable work <triplet> Ringworld <subj> Larry Niven <obj> author <subj> Known Space <obj> takes place in fictional universe <triplet> Known Space <subj> Ringworld <obj> fictional universe described in