A young Canadian visitor helps the Alden family solve a mystery involving a lost coin collection.

When Benny and Henry get summer jobs at a department store in town, they don't expect to be solving mysteries at work. But when an expensive vase disappears, the salespeople receive strange notes, and the jewelry display is tampered with, it's up to Benny to uncover the truth!

A hip new doughnut shop known for its bizarre recipes is opening up in Greenfield. At first, the owners of the other doughnut shop in town, Delilah?s, aren?t worried. But when the new shop starts making doughnuts that look just like some of Delilah?s greatest hits, the Boxcar Children must figure out if it?s just a coincidence or if someone from the new shop is stealing Delilah?s recipes.

The Boxcar children become involved in a mystery going back to Revolutionary War days.

The Alden children learn the mysterious history behind the caboose that they spend the summer in--a history involving a circus clown, a high wire artist and a valuable necklace.

"The Aldens climb a mountain and find a mystery! The hike up Old Flat Top was only supposed to take a day, but a dangerous rockslide changes everything to reveal a hidden cave that just may hold a legendary treasure!"--container.