Angelina the Lost Princess - Angelina the Lost Princess, #1

Fourteen-year-old orphan Angelina has always lived a happy ordinary life- that is until she discovers that she's a half-angel and heir to the throne of a mystical world called Magictopia. But the land has been overthrown and under the rule of her aunt, the Dark Queen. Angelina's only hope in defeating her and freeing the mystical beings of her homeland is to assemble the Elements Of Creation; the ancient protectors of Magictopia.
As she journeys through the land she meets five other girls, each of whom takes on the role of an element.