11) Caboose mystery
When the Aldens come across a robbery at an antique store, they decide to use their detective skills to help locate the stolen ruby ring, bracelet, and necklace. Yet, before their investigation even begins, someone breaks into the Aldens' home and steals a box of Benny's favorite Silver Frosted Star cereal! Is there a hungry thief on the loose or is something else going on? The Boxcar Children have another mystery to solve.
The Aldens are spending a week at Camp Seagull on beautiful Claw Island. But as soon as camp begins, they realize that someone is not playing fair. Everything begins to go wrong for the Aldens — they lose their luggage, Henry misplaces the camp flag, and the 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 willing to cheat? The Boxcar Children...
The Alden children are searching for a rare comic book about their favorite superhero, Captain Fantastic. When they finally find the comic, they discover that Captain Fantastic has a real-life enemy. Who would want to sabotage a superhero? The Aldens will need their super power of investigation to catch this comic book culprit!
The Aldens' neighbor, Lina, thinks there's treasure hidden in her attic, and she wants the Aldens 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?