Editing The Wanderer (Leiber novel) (section)

===The three friends===
Margo Gelhorn, Paul Hagbolt and Donald Merriam have been friends since High School.  Don became an astronaut, and Paul followed him into NASA by using his journalism qualifications to become a publicist for the agency.  Margo eventually bestowed her affections on Don and became his fiancee.  This left Paul with unrequited feelings for her, although Margo tells Paul that his feelings for Don are "more than brotherly".  The three form an odd triangle.  Margo herself is manipulative and exploits both Paul and Don to serve her ends.  Don is a loner at heart, however.  The triangle is set to fly apart.  Their collision with the Saucer Symposium provides the trigger.