Poul Anderson, Operation Luna (New York, 2000), pp. 1-3.
The Matucheks have been living in New Mexico for two years so they now know about Coyote and the Blue Flint Boys. I had never heard of the Blue Flint Boys but they reminded me of Blue Flint Girl, an acquaintance of Mike Carey's Lucifer. I have also found a Blue Flint Woman who may or may not be identical.