The First Time
At the start, the sounds could be heard a little bit in an unpredictable pattern. Each person heard it individually, often dismissing it right away for this very fact, as there was nobody else around to corroborate what had happened.

The First Time
In no time at all, the family started hearing the sounds more frequently, and while they were together. This would be a game-changer, indicating that something odd was happening here.
