Complex sentence: Because of this Croesus locked away all of his son's arms.And when a wild boar was ravaging the land, because of his dream, Croeus would not at first, let his son join the hunt.
Split into simpler sentences: Because of this Croesus locked away all of his son's arms. And sometime later, when a wild boar was ravaging the land, because of his dream, Croeus would not at first, let his son join the hunt.