The Drear - Edward F. McKeown

The adventures of Jeremy Leclerc begun in Knight in Charlotte and continued in Oniichan reach new height and new dangers as Jeremy is summoned to New York City to aid the Templar of New York. To his surprise he learns that not only is the Templar of New York female but she is paired with an angel as well. Worse, their two angels know each other and have a rocky history. Now begins a battle across, time, space and dimensions.

The Velma Rodriguez cycle: Included are three additional stories set between Knight in Charlotte and Oniichan.

The Siren of the Opera

Marionette Macabre

And

The Gorgonzola

The South has never been so strange.