Eons after Earth has been abandoned, various human civilizations have propped up across the Milky Way. As it turns out, one of these planets, isolated for years untold, had a population of humans evolved to a four inch stature, known as Parvians. When it was discovered, a gold rush sent waves throughout the galaxy, making Parvians the hottest commodity. 

We follow Martin, a third generation Parvian stationed in a backwater star system, and Tenebris, an outlaw, trying to make some money off the Parvian trade, as they travel the galaxy searching for their perfect buyer. 

The story has an integral 'hard sci-fi' focus, and I only use ideas I deemed plausible enough to exist realistically, with minor bending of the rules on occasion.