Audree found a typo. Yikes!
There’s an ad on the very last page of FALLEN for GUARDIAN, coming October 2009. The copy on that page lists the heroine of GUARDIAN as Lilia, but that’s not true. Lilia is the heroine of FALLEN. Her daughter Delilia is the heroine of GUARDIAN. Lilia and Montgomery will appear as continuing characters in the rest of the trilogy, but they’ve had their turn in the spotlight.
Sorry for any confusion!