The story is very loosely based on "The Adventures of Megan Martin" novel series. The adventures of Megan Martin was written for children to teens with mild language and situations. It was enjoyed by people of all ages. The writing style and content are different in Ember Reign.
Ember Reign is written for older teens to adults. It has mysteries, murders, strong language at times and adult situations.
The crown is an ancient device that uses key jewels to set the power modes. The crown and the first 5 jewel colors are the same as they were in the Megan Martin series.
The white jewel is sometimes referred to as the key of knowledge but it is also the key to all the other jewels. The green is the key that allows them to communicate with animals and has the ability to heal. The blue opens portals through space and time. The yellow has the ability to shape-shift. The red is the key of power and is a form of weapon. This is just the beginning.
In Ember Reign they also find the silver and gold jewels. The silver jewel contains the Ember program. Once downloaded into Megan's mind she learns her mind and body is no longer her own. Ember lives in there with her and she has an important mission. Now Megan not only has a dual personality problem she becomes a reluctant super-hero.
In reality Ember is a form of angel that commands two other angels that join with her. Sometimes they appear as red and blue orbs and sometimes they form a protective shell around Megan/Ember. Not to give secrets away but they do some other impressive things.
In the world of angels there are those who give orders and those who carry them out. Ember is one who gives orders and has great knowledge while the other two angels carry out those commands. The catch is that Ember resides within Megan and when she takes over Megan's eyes glow white, her hair sometimes changes colors, her voice and expressions change.
Ember is a type of guardian angel with a mission. Without her humanity and other more intelligent species in the universe are in serious trouble.
Now if Ember and Megan can just learn to get along.