Phoenix Descending (Book One of Curse of the Phoenix) by Dorothy Dreyer
Who must she become in order to survive?
Since the outbreak of the phoenix fever in Drothidia, Tori Kagari has already lost one family member to the fatal disease. Now, with the fever threatening to wipe out her entire family, she must go against everything she believes in order to save them—even if that means making a deal with the enemy.
When Tori agrees to join forces with the unscrupulous Khadulians, she must take on a false identity in order to infiltrate the queendom of Avarell and fulfill her part of the bargain, all while under the watchful eye of the unforgiving Queen’s Guard. But time is running out, and every lie, theft, and abduction she is forced to carry out may not be enough to free her family or herself from death.