(janvier 1973)
- Script
- François Craenhals (credited)
- Pencils
- François Craenhals (credited)
- Inks
- François Craenhals (credited)
- Colors
- François Craenhals
- Letters
- ?
- Editing
- ?
- Genre
- aventure (adventure); historique (historical)
- Characters
- Chevalier Ardent
- Reprints
- from Le journal de Tintin (Le Lombard, 1946 series) #7/1969, #8/1969, #9/1969, #10/1969, #11/1969, #12/1969, #13/1969, #14/1969, #15/1969, #16/1969, #17/1969, #18/1969, #19/1969, #20/1969, #21/1969, #22/1969, #23/1969, #24/1969, #25/1969, #26/1969, #27/1969, #28/1969
- in Riddar Eldhjärtas äventyr (Carlsen/if [SE], 1975 series) #5 - Harpans kraft (1976)
- in Roland - Ritter Ungestüm (Carlsen Comics [DE], 1975 series) #5 - Die heilige Harfe (1977)