Dave Hertzbach, center, of California helps his 10-year-old son, Alexander, put on his mask as mother, Pat Hertzbach, looks on Saturday while members of Beth Israel Synagogue in Lexington Park celebrate Purim with costumes, story telling, prayers, a play by the Sunday school members and a carnival the following day. The holiday celebrates the freedom of the Jewish people from the ancient Persian Empire in the Book of Esther.