If you like: aliens * action movies * moral conflict
This review contains mild spoilers.
Wormhole is the third book of the Rho Agenda series. After meeting up with Jack and Janet at the end of book two, Heather, Jennifer, and Mark enter into an elaborate training program. It provides them with the tactical, technological, and covert expertise they will need in order to stop the opening of the wormhole created by Dr. Stephenson. As they are still teens, they eventually succumb to the desire to speak with their parents and reassure them they are okay, which puts their secret location in jeopardy. They must use their new skills to escape detention, infiltrate the group at CERN, and stop the final escalation of the alien technology.