Secrets on the Iron Stair: A Kids' Historical Mystery Set in 1950s California (Paperback) (ISBN-13: 9798284593660)

The Soda Shop Sleuths: The Lightkeeper of Bradbury Hall
Book 7 in the award-winning mid-century mystery series

A ghost in the mail chute? A film set haunted by accidents? A building that remembers everything?

When Dot and Danny Miller arrive in Los Angeles for a summer visit to Aunt Vivian on the set of a historical drama, they expect movie magic-not glowing blue lights, near-fatal accidents, and a chilling whisper that seems to come from inside the walls of the Bradbury Building. As strange coincidences begin piling up, the twins are drawn into the mystery of an elusive figure who appears in photographs taken decades apart-and may still be watching them.

What begins as a search for the source of the building's strange phenomena leads to something far more unsettling: a hidden floor, a forgotten laboratory, and an invention that blurs the line between time, memory, and consciousness itself.

Set in 1954 within one of Los Angeles's most iconic architectural landmarks, The Lightkeeper of Bradbury Hall is a haunting mystery rooted in real history, spiritualist architecture, and the forgotten women of early science. As the twins uncover the truth, they must confront not just sabotage and spectral illusions-but what it means to remember, and be remembered.