The Orphan's Tale by Pam Jenoff, 344 pages.
Decent enough story involving circus folk, orphans, angry adolescents, greed, betrayal and nazis. None of it rings quite true, though;the strarving teen who is found by the circus folk just happened to be a world -class gymnast? And though it's several years into the war the Jewish circus performer who married a German officer is somehow surprised to find out that there's a bit of official antipathy borne by the German government towards Jews?
If you can get past the author's seeming unfamiliarity with her chosen setting, the book is alright.