This story is a sequel to Satan's first strike

Two years after rescuing Neighsay's crew from Satan, Twilight settled down with a husband. However, he was killed by a Timberwolf during a hike in the Everfree Forest. Eight and a half months have passed and Twilight is very pregnant. Now, Twilight has been under the weather, but has still been capable of teaching class. Carrying a child in her womb, she knows she must go on a maternity leave. Flurry Heart is excited, and has volunteered to be her substitute. Neighsay is aware of why Twilight is leaving, and has volunteered to step in as headmaster during her leave. Also, what will happen six years later?