Quite a mess:Gil caught the goldfish, locals are terrified (Agatha already know who will be responsible for this accident), Dolokhov tries to reach Gil (with his four arms!), Baron seems to be unimpressed and not surprised at all.
There’s a cannister of phlogysten (a fire-like substance - you can read about it’s theory here) and a book titled “How I Do It?”. Indeed, it’s a good question.
Marlot is clearly terrified - and he should be, he learned today that every action has it’s consequences.
And I guess the official version of the events will be that Dr. Beetle died in the lab accident. Well, he sort of did, he hasn’t planned to kill himself with his own bomb.