Aufl. Yoko Tsuno stories are one of the classics of Western European adventure graphic novels. It has been running since 1969 as drawn and written by Roger The ligne claire exemplar is Tintin comics, and Leloup is a former associate of Hergé.
» Yoko et Émilia décident de les accompagner sous l'eau. Yoko Tsuno. Curious Trio by Leloup, Roger (Paperback book, 2012).