After Professor Crazybrains (an early, comic version of the venerable 'mad scientist' character) falls asleep amidst the drawings of his new dirigible, he is visited by fairies and cavorting imps (possibly the same Folies Bergères acrobats that appear in a number of Méliès' films). The laboratory walls slowly disappear, leaving the inventor thrashing in his bed as his airship, driven by giant propellers flies in the background, accompanied by more fairies. Suddenly a heavenly fireball strikes the craft, destroying it. More imps appear as the professor awakens, finds himself back in his lab, and promptly destroys his designs. There are some effective substitution-splices, set changes, and a nice dissolve as the laboratory disappears and the ill-fated aeronef takes center stage. The comedy may be a bit broad for modern tastes (the name 'Crazybrains' sets the tone), but the beautifully colorised version I watched on-line is fun and imaginative.