Share this Page W.T. Mars 0 Total Resources 1 Books Books by W.T. Mars 1 Sort by Number of Resources Number of Awards Book Title Year Published Word Count Reading Level: ATOS® Reading Level: Lexile® Add Multiple Titles to Reading List Browse books by W.T. Mars Calico Captive by Elizabeth George Speare and W.T. Mars 3 Resources Add to Reading List Share this Book Images courtesy of publishers, organizations, and sometimes their Twitter handles.