Dawn of Liberty (Secret of the Rose #4)

Dawn of Liberty is the fourth and final book in the Secret of the Rose series. Matthew, Sabina, and son, Tad, return to Germany in the 1990s to participate in a conference on spreading the gospel in the post-Cold War era. Unexpected encounters bring them face-to-face with the KGB and the remaining links of the Network of the Rose and land them in the middle of an attempted coup to seize control of Eastern Europe.