Operation Luna

Blurb

Operation Luna is a science fantasy novel by American writer Poul Anderson, published in 2000; it is the sequel to the 1971 fixup novel Operation Chaos by the same author.
It centers around a space flight attempt and the efforts of Coyote and several Oriental antagonists to stop it. The IRS and NASA also become involved.
The two main characters from Operation Chaos, Steve Matuchek, a werewolf and engineer for Nornwell Scrytronics, and Virginia "Ginny" Matuchek continue in their fight against the forces of evil. Now married and in their 40s, they have three children—Val, the child they rescued from Hell in Operation Chaos when she was 3, now 14–15 years old; Ben, 10 years old; and Chryssa, 4 years old.
A few characters from Operation Chaos also reappear, such as Barney Sturlason, Steve's boss, and Bob Shining Knife, a Native American F.B.I. agent, though they have small roles in this novel.