Me, Abraham and Megan are the first customers to Diamond's shop since his recent arrival. They browse the arsenal, looking for weapons that can mimic the powers of an Epic. Diamond shows David a video of the detonation of a stealth explosive disguised as a bottle of water. David tells Megan that he doesn't like being called a nerd because all the smart kids in his factory ended up working as Steelheart's corporate employees. Abraham purchases a gauss gun which fires charged explosive projectiles and a pen activated stealth explosive, in exchange for four dna data samples from harvested Epics and a data chip. David smells an odor similar to garlic and realizes that Nightwielder is there.

-Summary
http://coppermind.net/wiki/Steelheart/Summary#Chapter_1