Le Triangle Secret - Hertz #3

This third volume of the Hertz sub-series within Le Triangle Secret follows the ongoing adventures of the young Hertz as he uncovers more layers of a mysterious conspiracy. Titled 'Le Frère qui n'existait pas' (The Brother Who Didn't Exist), the story delves into family secrets and hidden identities, continuing the blend of historical intrigue and supernatural elements characteristic of the series.