Angel of the Battlefield (The Treasure Chest #1)

While exploring The Treasure Chest, Felix and Maisie are transported to a Massachusetts farm in 1836. Disappointed that they have not landed in their beloved New York City, they wonder why they were brought to Massachusetts to meet a young girl named Clara Barton. Perhaps Clara has a message for the twins? Or maybe they have one for her?

(Alternate title - *Clara Barton: Angel of the Battlefield*)