The Short Second Life of Bree Tanner by Stephenie Meyer

The Short Second Life of Bree Tanner is a companion novella to the Twilight series by author Stephenie Meyer. It tells the story of a newborn vampire, Bree Tanner, who is featured in the third book of the series, Eclipse. The book is written from the viewpoint of Bree, as opposed to the rest of the series which is predominantly narrated by character Bella Swan.
The story begins with Bree and Diego hunting for human blood in Seattle, Washington. Bree has been a vampire for three months, and Diego has been one for eleven months. Together they kill and drink a pimp and two prostitutes. Bree and Diego talk about "her" (Victoria) and ask why she is turning so many people into vampires. Diego thinks something is coming, and that "she" is using them as protection. They hide in a cave and discuss how Riley came to offer them a second life as a vampire.
Together they decide that Riley is using them as pawns for protection, and that he might be lying to them. They also discover that sunlight does not kill a vampire, but makes their skin sparkle. They become friends and decide to form a "club," spending the day "playing ninja," looking for Riley and the other vampires they live with. They find that Riley had relocated everyone to a log cabin and Diego gets into a fight with Raoul, an arrogant newborn, but another newborn, "Freaky Fred," uses his repelling power to stop Raoul from killing them. That night Bree and Diego stalk Riley, suspicious that he is meeting with "her." They eavesdrop on Riley's conversation with Victoria... (Summary by Wikipedia)