Submarine Found In Dried Up River, Then They Look Inside

Known voice

Don and Carl looked at Kevin, hoping he would soon know who the voice belonged to, but then it dawned on them. They also recognized the voice! The trio listened intently to the voice, which was urgent and deep. “It’s the man from this morning. Who sent us away!” Kevin suddenly exclaimed. The other two nodded in agreement. They heard it now, too. But why was that man’s voice coming from this radio?