The Dragon Bone Flute - Dragon Bone Tales, #1

Elzibeth just wanted to be left alone to play her grandfather's flute, but others in her village seem to think she needs a lesson in bringing her down from her soaring dreams and stand firmly on the ground like everyone else. Three brothers take it upon themselves to teach Elzibeth how dangerous dreams and fancies can be. Three brothers challenge her to seek out the dragon's cave, even though the last man who went there never returned.
While no one in Elzibeth's village has seen any sign of a dragon in decades upon decades, yet they still have the good sense not to wander too close to the dragon's cave for fear of stirring up old trouble. Elzibeth must accept this task or risk losing her music forever. This one challenge sparks of events that change Elzibeth's life forever. She learns that fancy and wonder can be both wonderful and terrifying, and that the magic of dragons is more than skin deep...