Star Mist — Dean Wesley Smith

A dead alien ship appears close to human space. But in millions of years, no alien race managed to leave its own galaxy. The alien ship originated in a galaxy over two hundred thousand years of travel away. But the Seeders need to know about the alien race, in case they are a threat. Star Mist takes on the vast scale of the Seeders Universe and expands it even more. Galaxy-spanning science fiction at its very best.