The mystery of the secret message : The Aldens are helping their grandfather organize Greenfield's Winter Festival. When the Boxcar Children get a roll of photos develped, they find a secret message hidden in one of them. They are baffled, and things become even more mysterious when they realize that someone is trying to ruin the Winter Festival by tearing down the decorations and stealing a local statue. There must be a connection between the message and everything that is going wrong. Can the Boxcar Children figure out what it is in time to save the Festival? The firehouse mystery : The Aldens can't believe that Greenfield's town council wants to demolish the historic firehouse that has stood for over a hundred years. So they decide to try to fix up the building, which houses some valuable firefighting antiques. But someone keeps trying to savotage their attempts. The Boxcar Children must find out who it is. The mystery in San Francisco : The Aldens are thrilled to be with their Aunt Jane and Uncle Andy in San Francisco. When they visit Fisherman's Wharf, their friend Charlie invites them aboard a fishing boat. But strange things are happening on the wharf, and it seems as if someone doesn't want Charlie to catch any fish. Can the Boxcar Children find out what's going on?