Set in the lead up to Christmas in 1911, The Case of the Secret Signal is the latest book in Brian Gallagher’s new mystery series. Following the adventures of twins Deirdre and Tim, and their friend Joe, The Case of the Secret Signal picks up where the first book in the series – The Case of the Vanishing Painting – left off, with the trio looking forward to a trip to stay with Deirdre and Tim’s Aunt Helen in Carlingford.
One night, Tim spots a series of flashing light signals coming from the hillside near Aunt Helen’s farm. Immediately recognising the series of flashing lights as an SOS cry for help, the trio soon find themselves embroiled in a dangerous new adventure. And without knowing who they can trust, will they be able to solve the mystery in time?
Fast paced and with engaging characters, The Case of the Secret Signal is very hard to put down. The flow of Brian Gallagher’s writing puts both the characters and the reader through their paces as the mystery deepens and a sense of peril takes over. For those who love old-fashioned adventure stories, this is definitely the book for you! A huge thumbs-up from us here at TPP!
The Case of the Secret Signal is published by O’Brien Press (2025)