Seeing that this is my first Tintin book and my second favourite, here goes!
1. Knocked from his chair
As cigars of the beeper
wrote, maybe the lightning was powerful enough to launch him off the chair? Like in Seven Crystal Balls
2. His ropes are severed
Being a ball of fire, as Demicius Phostle describes the meteorite in Shooting Star
, the lightning-ball-thingy must have burnt the ropes.
3. Smashes thru the small window pane of glass perfectly
He must have been launched off the chair backwards, and seeing that he doesn't usually get bruises or bleeds (apart from Blue Lotus
), he would obviously smash through it perfectly.
4. Lands outside the hut at a considerable distance without any key injuries save torn clothing??
Again, he doesn't get bruises or bleeds...unless the clothes saved him from bleeds?
The order should be:
1. Ropes burnt off
2. Launched from chair
3. Flies backwards as Ramon and Alonzo's clothes sizzle
4. Smashes through window
5. Thrown in the air for a distance and is saved from any nasty injuries by clothes
Apparently, the ball-lightning effect is a real thing. There is a thread on it somewhere in the forums.
On the alternative, one could always just watch how Ellipse-Nelvana did it...