By Morvan, Munuera and Lerolle.
The device Spirou is holding is a G.A.G. It first appeared in the album ‘Le prisonnier du Boudda’ (The prisoner of the Buddha) by Franquin. The G.A.G. can make people float, change the weather and let plants grow quickly. In album 50: Aux sources du Z (The orgins of the Z) by Morvan and Munuera, the thing can also time travel.
This whole thing is basically in reference to Aux sources du Z (The orgins of the Z)… Which as far as I’m concerned was a fascinating trainwreck.
Nice visuals and AU’s in this one though.