Remember that time when Buffy's little sister Dawn first found out that Buffy is the Slayer? And then when Angel almost killed Dawn, because no one had told her that he'd turned evil again? And who could forget the time Dawn loaded up on band candy? Buffy and the Scooby Gang all have memories connected to Dawn, and only Buffy and Giles know they're not real. But Dawn is turning up other little secrets from the past, including a previous vampire slayer who met the worst fate imaginable -- and still suffers under the curse. A new four-issue series kicks off where we find out just how much trouble a little sister can cause.