The Magic of Inherian: Scepter of Salvation

Princess Talamaya turned 18 in the human kingdom of Damar, just like her twin brother. Only when she comes of age, she must wed the king's choice. When her brother comes of age, he's allowed to sit on the council. But everything changes when a wizard pits beast and man against each other in Inherian--all because of the loss of the Scepter of Salvation and she must return it to their kingdom.

Princess Talamaya and her friends, Lady Kersta and Lady Mexia, must retrieve the Scepter of Salvation when her brother is poisoned.Visions plague Talamaya of a world beyond her own, of a destiny she has to fulfill.

But the barbarian king is also after the scepter, and the black-hearted wizard who is trying to gain control will do anything to keep them from retrieving it.

She must free a knight from his madness.
Help a female dwarf escape from the dwarven mines.
Aid an Amazon fighting the Dark Elves.
Rescue even the barbarian king.
Save a crusty old dwarf from the wolves of Elan Pass.
And outwit the dark wizard once more.
Above all else, she must always take the path of righteousness.

Which is much easier said than done.