The Case of the Secret Signal

by Brian Gallagher

Ireland, 1911

A secret signal flashes in the night ...

It's an SOS. Is someone being held prisoner?

Friends Tim, Deirdre and Joe set out to investigate. What started as a diversion while on holiday with their aunt in Carlingford quickly spirals into a dangerous adventure.

Can they solve the case before it's too late? And who can they trust?

• Format: Paperback
• Language: English
• ISBN: 1788495217
• ISBN13: 9781788495219
• Release Date: May 2025
• Publisher: O'Brien Press