The books are hard to replace, or maybe impossible now. We thought when Antonio Garcez put all the Adobe Angels titles into one volume, New Mexico Ghost Stories, that we could get a zillion of them and take care of the demand. But the publisher immediately disappeared. And anyway the kids never feel that they are getting the real thing if it doesn't say "Adobe Angels" on the cover.
Other titles: Haunted highway : the spirits of Route 66 by Ellen Robson & Dianne Halicki. Spooky Southwest : tales of hauntings, strange happenings, and other local lore retold by S.E. Schlosser. If you see a used copy around town of any of the titles we've mentioned, ask the bookseller to hold it for us and let us know! Meanwhile, yes, you can always read a reference copy.