Sapphire Kingdom (Dragon Quest #2‪)‬

Ashley, Angie, and April are three sisters, who found themselves transported to the ancient world Eupai; where they are told that they are the next legendary dragon warriors, chosen at birth to bring peace to the land. After receiving an unexpected message, the girls' begins a quest that was foretold many years ago.
Accompanied by Prince Leev of the Inner Kingdom, the overbearing captain of the guard Leo, and the mysterious Rṓgaire; they set off to their first destination...Sapphire Kingdom. Ashley soon learns that there is more awaiting her there, than her dragon.
While experiencing one shocking revelation after another, Ashley and her sisters' bond is tested; as she is torn between what she has, and what she has always wanted.
In Sapphire Kingdom, loyalties are tried and enemies are made, while Queen Jewel becomes even more powerful, as the enchanted moon draws near. Will Ashley be able to claim her dragon and her place in Eupai? Or will she be overwhelmed by her fears and desires?