XIII Mystery

A German-language spin-off series from Carlsen Comics, XIII Mystery launched in 2010 and expands the universe of the original XIII saga by dedicating each of its 14 issues to the backstory of a supporting character. Written primarily by Harald Sachse, Alcante, and Éric Corbeyran, the series features a rotating cast of artists, including François Boucq, Philippe Berthet, and Ralph Meyer, who bring distinct visual styles to these origin stories. It matters to fans as a deep-dive companion that enriches the conspiracy-laden world without retreading the main narrative.