Who is the main character in the story, Acts of Faith, from the collection, Young Warriors: Stories of Strength?

Bridget, Maire and Miriam, the story's main characters, are three girls of different faiths who end up in the same Irish convent during World War II. The girls each hide secrets regarding their pasts and their true faiths. They work together to perform a magical spell that transports them to the United States. Their escape saves the life of Miriam, a Jewish girl hiding from the Nazis.