Vampires of El Norte by Isabel Canas

Vampires and vaqueros face off on the Texas-Mexico border in this supernatural western from the author of The Hacienda. This story has been described as more historical romance than horror, so there you have it.

This book appears on all the "read this book if you loved SINNERS" lists, so your hostess with the mostest is hopeful it will be the one to break her reading slump.