IN WHICH THE DENOUEMENT TAKES PLACE.

When a formidable explosion resounded.  All the atmosphere which enveloped Quiquendone seemed on fire.  A flame of an intensity and vividness quite unwonted shot up into the heavens like a meteor.  Had it been night, this flame would have been visible for ten leagues around.

The whole army of Quiquendone fell to the earth, like an army of monks.  Happily there were no victims; a few scratches and slight hurts were the only result.  The confectioner, who, as chance would have it, had not fallen from his horse this time, had his plume singed, and escaped without any further injury.

What had happened?

Something very simple, as was soon learned; the gasworks had just blown up.  During the absence of the doctor and his assistant, some careless mistake had no doubt been made.  It is not known how or why a communication had been established between the reservoir which contained the oxygen and that which enclosed the hydrogen.  An explosive mixture had resulted from the union of these two gases, to which fire had accidentally been applied.

This changed everything; but when the army got upon its feet again, Doctor Ox and his assistant Ygene had disappeared.