Someone is trying to put Aunt Jane's motel out of business, but the Alden children aren't going to let that happen.

While on a camping trip with their grandfather, the Alden children try to find out about the loud music and missing food that threatens to scare away other campers.

While on a cruise with their grandfather, the Alden children help discover who is behind the mysterious troubles of the ship--disconnected phone lines, engine trouble, a man overboard--and still have fun sightseeing, eating, and swimming.

The Alden children hunt for their late grandmother's necklace that has been missing for years.

While helping fix up the old house their cousins have bought, the Aldens hear stories about its being haunted and find evidence suggesting that there may be a ghost there.

The Alden children suspect someone of trying to sabotage the local dog show.

When the Alden children accompany their grandfather to the Snow Haven Lodge, a series of odd occurrences threaten to disrupt the annual winter games.

"The Boxcar Children are helping at a pizzeria, but it seems that someone is trying to shut it down. Can they find out who is causing trouble? Adapted from Gertrude Chandler Warner's story of the same name, this early reader allows children to start reading by themselves with a Boxcar Children classic."--Amazon.

While visiting the seaport town of Ragged Cove, Massachusetts, the Alden children find the ship's log of the Flying Cloud, shipwrecked in 1869, supposedly during a mutiny.

While visiting the Florida Keys, the Aldens encounter suspicious characters, strange incidents at night, and a plot to steal valuable coral.