Joel Callede has been writing comic scripts since he was 10, and eventually gave up his job as a teacher to dedicate himself to his passion. He wrote Comptined'Halloween and Dans la Nuit, as well as volume 7 of series XIII Mystery. Alain Henriet is a long-time fan of both European and American comics. In addition to working for Spirou magazine, he drew the series John Doe in 1996 and Golden Cup in 2003 before signing on for one volume of Pandora's Box in 2005.