What to read after Rachel's Promise?

It is late 1903, and Rachel and her family are leaving Russia to escape the murderous riots against Jews. They travel cross country on the Trans-Siberian Railway to the coast and board a ship for Shanghai. China offers refuge, but life for them there is difficult and strange. The opportunity to write for a Jewish newspaper may help Rachel ensure her family's survival while not giving up her dreams for her future. Still in Russia, Rachel's friend Sergei leaves home for a factory job in St. Petersburg, soon joining the rebelling workers, but realizing he has traded one source of danger for another. Separated by so much, the two teenagers try to make their way in the turbulent political times of the early twentieth century--their only connection the letters they write, and their fierce hope for the future.