Gertrude Chandler Warner

The Boxcar children have dinner at a Chinese restaurant and get a handwritten riddle in a fortune cookie! One riddle leads to another, and the children wonder who is leaving the cookie clues and why.

When the Aldens visit friends in Vermont, they're in for a teddy treat, the annual Bear Jamboree, celebrating toy bears from all over the world! The Aldens soon encounter an unbearable mystery: a very rare and valuable bear has disappeared from the toy hospital. Now it's up to the children to track down the teddy thief?

When the Aldens have the chance to work at a candy factory, they try to find out who is sabotaging the candy and why.

The Boxcar Children are going to summer camp and are looking forward to a week of new friends, exciting activities, and, most of all, the annual camp Olympics. As soon as camp begins, everything begins to go wrong for the Aldens-they lose their luggage, the camp flag disappears from Henry's cabin, and campers on the other team use one of Jessie's ideas to score points for themselves. Are some campers so desperate to win the Olympics that they are...

The Aldens take part in a hunt at a gem mine and discover that someone is out to sabotage the contest.

When the Alden children go camping on Blizzard Mountain, a place said to be inhabited by a ghost looking for buried treasure, they begin to think someone or something is trying to scare them off.

The Aldens participate in a three-day bicycle ride and soon find that someone seems to be intent on keeping others from completing the event.

While visiting a small town in Alabama, the Aldens hear mysterious howls at midnight, leading them to wonder if an old local legend about a ghost dog is true.

5 children visit a South Sea island and unravel a mystery with a surprise solution.

The Alden's neighbor, Lina, thinks there's treasure hidden in her attic and she wants the Boxcar Children to help her find it. Of course, the children are eager to help search-but it appears they aren't the only ones looking for the treasure. Can the Boxcar Children discover the treasure in the attic before someone else finds it first?