He also illustrated "Seul maitre à bord", the 3rd novel of the collection "Marabout-Junior", written by Jean-Jacques Schellens, a friend Scout.

Georges Troisfontaines, founder of the World Press, accepted to publish the project, at a time when the Signe de Piste collection was very popular, but he preferred to trust the scenario to Jean-Michel Charlier and demanded the characters to be reshaped.

The first album of La Patrouille des Castors (The Beaver Patrol), Le mystere de Grosbois, was published in 1954 in Spirou magazine.

In 1957, he made a report for Spirou magazine at the 9th World Scout Jamboree at Sutton-Coldfield in England with Yvan Delporte.

L'autobus hanté, the first adventures of the patrol with their new uniform, relating the crossing of Europe in an autobus, was very successful and imitated by several Scouts at that time.

In 1979, Charlier et MiTacq decided amically to stop their longtime collaboration in the course of the making of the album Prisonniers du large.

In the first albums of the Beaver Patrol series, the protagonists wear the same yellow and bleu scarf as the Saint Alène troop.

In the course of 1975, he devoted two months to draw the cover and ten illustrations for Jean Destieu's Les Emeraudes de Colombie.

MiTacq also paid tribute to Serge Dalens, the author of the Prince Eric series, by an illustration in 1987, the year when the 50th anniversary of the collection Signe de Piste was celebrated.