He had the bags packed in a small cart, and returned home meditating deeply.

A man who possessed three hundred thousand livres can no longer expect to wear a smooth brow; a wrinkle for every hundred thousand livres is not too much.
D'Artagnan shut himself up, ate no dinner, closed his door to everybody, and, with a lighted lamp, and a loaded pistol on the table, he watched all night, ruminating upon the means of preventing these lovely crowns, which from the coffers of the king had passed into his coffers, from passing from his coffers into the pockets of any thief whatever.

The best means discovered by the Gascon was to inclose his treasure, for the present, under locks so solid that no wrist could break them, and so complicated that no master-key could open them.

D'Artagnan remembered that the English are masters in mechanics and conservative industry; and he determined to go in the morning in search of a mechanic who would sell him a strong box.

He did not go far; Master Will Jobson, dwelling in Piccadilly, listened to his propositions, comprehended his wishes, and promised to make him a safety lock that should relieve him from all future fear.
"I will give you," said he, "a piece of mechanism entirely new.