When Dantes first reached the Chateau d'If, was he put in a cell alone, or with somebody?

Dantes was put in a cell alone.

“Here is your chamber for tonight,” said he. “It is late, and the governor is asleep. Tomorrow, perhaps, he may change you. In the meantime there is bread, water, and fresh straw; and that is all a prisoner can wish for. Goodnight.” And before Dantès could open his mouth—before he had noticed where the jailer placed his bread or the water—before he had glanced towards the corner where the straw was, the jailer disappeared, taking with him the lamp and closing the door, leaving stamped upon the prisoner’s mind the dim reflection of the dripping walls of his dungeon.

Dantès was alone in darkness and in silence—cold as the shadows that he felt breathe on his burning forehead.