Chasing Mona Lisa, by Tricia Goyer and Mike Yorkey. During the Nazi reign, many valuable pieces of art go "missing", meaning those in the higher positions of the Nazi army have stolen them and hidden them. Agents Gabi and Eric have been assigned to find the Mona Lisa's secret location and bring her back to France. But they are in a race against the Nazi's to find her! So much peril and danger surround them the entire time!
This was a good book, wasn't among my favorite, but its definitely worth a read! I did enjoy the suspense of it all, but I think it was just the era in which it was written that I didn't enjoy it as much!