Dragon's Wish: Service is the path of life (Emrys Book 1)

Rylina’s focus is on high school, on making her longtime friend Simon see her as a girl, and surviving a family she considers eccentric.

After Rye’s left arm disappears during a family dinner, she tries to protect her sporadic invisibility while discovering why it happens. She meets a wizard, first as a reflection in a pond and later in person, who calls himself Tanner, explaining that her partial invisibility occurs when he crosses from his dimension to reach her. He insists that she is the next Sirach, the one destined to claim a mysterious treasure, confront a destructive shapeshifting White Dragon, and help him complete his vow in the Red Dragon’s service.

The shapeshifting foe, the White Dragon, uses her beauty and sham friendliness to convince Rye’s friend Simon to serve a darker purpose, while Tanner urges Rye to discover, on her own and in a hurry, how to claim Merlin’s treasure and stop their enemy before those closest to Rye are absorbed.

Sacrifice made from love can instill courage and loyalty and determination in the quietest soul.