Book 1

The Swiss Courier

by Tricia Goyer and Mike Yorkey

Published 1 October 2009
It is August 1944 and the Gestapo is mercilessly rounding up suspected enemies of the Third Reich. When Joseph Engel, a German physicist working on the atomic bomb, finds that he is actually a Jew, adopted by Christian parents, he must flee for his life to neutral Switzerland.

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Book 2

Chasing Mona Lisa

by Tricia Goyer and Mike Yorkey

Published 1 January 2012
It is August 1944 and Paris is on the cusp of liberation. As the soldiers of the Third Reich flee the Allied advance, they ravage the country, stealing countless pieces of art. Reichsmarschall Hermann Goring will stop at nothing to claim the most valuable one of all, the Mona...Read more