No way. 'Beneath a Scarlet Sky' is not for kids. The subject matter and writing style are better suited for grown-ups. It has elements that require a certain level of maturity to fully appreciate.
The significance could be in its portrayal of real - life events during a particular era. It might show the human experience, struggles, and triumphs against the backdrop of the 'scarlet sky' which could symbolize a time of turmoil or change.
It's a true story set beneath a'scarlet sky'. But without more context, it's hard to be more specific. It could be about events in a particular region during a historical time.
It could be two star - crossed lovers, like a vampire and a human. The vampire's immortality and the human's mortality would create a lot of tension, especially in the spooky setting of a moonless sky.
One idea could be exploring the backstories of the characters in more depth. Maybe they have hidden past traumas that are affecting their relationship in this moonless sky setting. Another is to introduce a new character who challenges their love, like a long - lost acquaintance of one of them.
I'm not certain about the popularity of Scarlett Ripley novels as I haven't come across much information regarding them. It could be that they are popular within a niche group of readers.