"The Aldens visit Ireland and stay in a beautiful castle that's now a hotel. But at night they see a mysterious figure who walks with a lantern, and think it could be one of the legendary banshees"--

When Benny decides to dig a hole in the back yard, Grandfather gives him an old map that leads to a special discovery.

"The Aldens visit the shore in New Jersey and help out at an amusement pier that is rumored to be unsafe"--

The Boxcar children, while participating in the "Teddy bear festival," help recover a valuable teddy bear that disappeared from the toy hospital.

"The Alden children help solve a case surrounding missing vegetables and vandalism in the community garden"--

The four Alden children, aged six to fourteen, uncover a mystery while volunteering at a food pantry for the needy.

In The ghost of the chattering bones, while vacationing at a friend's country home, the four Alden siblings try to find a long-missing, priceless brooch and investigate the existence of a ghostly stream. In The creature in Ogopogo Lake, the Aldens visit Grandfather's friend at the Ogopogo Retreat and aided by puzzling clues, embark on a treasure hunt to prevent the retreat from being sold. In The vampire mystery, when the Aldens agree to watch the...