The third book in the Kathleen Mallory series, 1996
Many thanks to the people who answered my questions and extended their courtesy.
Dianne Burke, Search & Rescue Research Associates, Tempe, Arizona, for her patience and diligence. (LFQYO1A @prodigy.com)
Robbin Murphy, Creative Director of artnetweb, for a tour of the system, (http://artnetweb.com/artnetweb)
YTNOP Music, for the use of an atmospheric Jean-Luc Ponty instrumental.