Please pardon my sudden intrusion into your discussion but since I have a promotional copy of book one I thought I'd answer.
Amy Burley is first mentioned on page 244, as a good replacement for the dead waitress Dawn, she dies off screen shortly after, and is never actually seen in Dead Until Dark. It is mentioned that she seemed to have a secret agenda when she met Jason, and it is implied that she drugged his drink during the date in order for Rene to play a dirty trick on him because she was jealous of all the women Jason had slept with.
Amy Burley is first mentioned on page 244, as a good replacement for the dead waitress Dawn, she dies off screen shortly after, and is never actually seen in Dead Until Dark. It is mentioned that she seemed to have a secret agenda when she met Jason, and it is implied that she drugged his drink during the date in order for Rene to play a dirty trick on him because she was jealous of all the women Jason had slept with.