Love's Tender Gift (Heartsong Presents)

is book #125 of the Heartsong Presents line.
==Book Description==
Val Packard is bright, perceptive, and a courageous defender of the faith...in the grad school classroom that is. Outside, however, she is plagued by an increasing fascination with Joel Bennigan, the handsome assistant pastor of Faith Bible Church. — Determined to prove herself to Joel, Val decides to infiltrate a local cult as a class project. But she isn't prepared for Joel's stern opposition or her own vulnerability to the persuasive tactics of the cult members.
With her life in danger, Joel follows her to Ireland where she has been lured with promises of eternal life and love. Will Joel find Val in time to convince her that she already has his love...and God's?
(Description from paperbackswap.com)