- Script
- Bernard Dumont [as Bédu]
- Pencils
- Bernard Dumont [as Bédu]
- Inks
- Bernard Dumont [as Bédu]
- Colors
- Luce Daniels
- Letters
- ?
- Genre
- aventure (adventure); humour (humor); fantasy (fantasy-supernatural)
9th part of the 46 pages long story "Le château des mouettes". Story appeares in "Journal de Tintin" 683-690 and is continued in "Tintin Reporter" 1-2.