The Ghost Town Mystery (The Boxcar Children Ser., No. 71)

One warm night four children stood in front of a bakery. No one knew them. No one knew where they had come from. Henry, Jessie, Violet, and Benny used to live alone in a boxcar. Now they have a home with their grandfather, who's just bought a plot of land in the Rocky Mountains. When the Aldens hear their land is haunted they don't believe it. But when they see a ghostly figure in Tincup, an old ghost town on their property, they know something's up. Back at the ranch, where the phone and electricity go out with suspicious frequency, they fit the clues together. There's a mystery here and the Aldens are determined to solve it!