Warner, Gertrude Chandler

"When the Alden siblings visit their grandfather's friend in an apartment building, they begin to wonder about the many mysterious events that keep happening on the thirteenth floor of that building" OCLC.

The Aldens visit Ireland and stay in a beautiful castle that's now a hotel! But the caretaker seems very superstitious, and at night they see a mysterious figure who walks the halls carrying a lantern. Could it be one of the banshees of ancient legend? The Boxcar Children must discover the secret that Duncarraig castle is hiding!.

"The Aldens are helping out at a harvest festival in a town at the foot of the Rocky Mountains. But something in the hills is scaring people away! Are the local rumors about a werewolf true?"--Back cover.

"The Boxcar Children stumble across a 100-year-old time capsule with a mysterious journal inside. It contains clues that lead the children around Greenfield and through the history books in search of a lost treasure. But questions remain. Who wrote the journal? And after 100 years, will there be enough evidence to find the hidden treasure?"--From publisher.

"The old abandoned school in Silver City is being fixed up as an art center and the Boxcar Children volunteer to help clean up the place. But the other volunteers are scared by the spooky goings-on in the school--doors lock by themselves, and chalkboard messages appear out of nowhere! Will the Aldens find out the secret of the haunted school?"--Provided by publisher.