The Disciples is a 1993 spy thriller by Joe Andrew, who was chairman of the 2000 Democratic National Convention, and V.C. Andrews.
From the bookjacket
<blockquote>"After a recruiter for the National Security Agency goes AWOL, NSA information analyst T.C. Steele must track her down."</blockquote>
Critical reception for The Disciples was mixed. Kirkus Reviews called the book "An engrossing thriller--and first novel--that displays a firm grasp of conspiracy theory". Publishers Weekly wrote that although the book had "a few good twists and a clean prose style", it had "little here to recommend".