Monkey Trouble - Boxcar Children, Bk 127 Author:Gertrude Chandler Warner, Robert Papp (Illustrator) It's spring and all the baby animals are being born; a perfect time to visit the zoo. The Aldens join a group of kids as they all take pictures throughout the zoo, each hoping to win $500 in a photo contest. When one of the cameras is missing, the Aldens take on the mystery and save the day.