ompanions in Christ is now being offered in a new 5-piece Participant's Book set as well as the traditional 1-piece Participant's Book. With the same great daily exercise material and articles, the two different Participant's Book styles allow your group to use the format that best fits your time frame. The new 5-piece Participant's Book set offers groups a convenient way to take breaks between modules. The traditional 1-piece volume is still a great value for groups who will continue their study together for 28 weeks.