Rosetta and The Battle to The Middle

On an earth were it doesn't spin, instead there are 2 sides; A side ruled by Apollo decedents were it's always day, and a side ruled by Hades decedents were it's always night. But there's a secret third side that hardly anyone knows about, known as "The Middle" and ruled by Solangelo decedents were it's just like our earth and shifts from day to night everyday. One day the King of the day orders his 3 youngest kids, Cat, Fred, and Lynn to attack the night. A young girl named Rosetta, princess of the middle overhears this and goes to warn her parents. On the way back she overhears the night plans to attack the day. Rose is worried, she knows that if the 2 sides fight, a war will start. What will her parents decide to do? Will there be a war? Or will they cease the attack? (i sound like a new journalist lol) {HUGE thanks to @BubblyChildofHades for helping come up with this.}