Satan said it would, and it did.

We went off every day and got to ourselves in the woods so that we could talk about Satan, and really that was the only subject we thought of or cared anything about; and day and night we watched for him and hoped he would come, and we got more and more impatient all the time.

We hadn't any interest in the other boys any more, and wouldn't take part in their games and enterprises.

They seemed so tame, after Satan; and their doings so trifling and commonplace after his adventures in antiquity and the constellations, and his miracles and meltings and explosions, and all that.
During the first day we were in a state of anxiety on account of one thing, and we kept going to Father Peter's house on one pretext or another to keep track of it.

That was the gold coin; we were afraid it would crumble and turn to dust, like fairy money.