Dragontide's Daughter. Dragontide, #1

A teen girl embarks on a quest to cure her grandfather's sudden illness with the legendary Elixiron, only to confront the ancient guardian of Lake Dragontide and uncover that the true cost of the cure may sever her deepest family bonds. Ellie Harper will face any challenge to save her grandfather-even if it means venturing into a forbidden forest. When Ellie learns that a rare ingredient called Dragonscale Moss is needed to create an elixir to cure her ailing grandfather, she embarks on a quest into the deadly Thornveil Wilds to retrieve it.
Along the way, she encounters treacherous creatures, navigates perilous landscapes, and uncovers secrets about her family history. However, Ellie soon discovers that the forest holds more dangers than she could have ever imagined and that the price of saving her grandfather's life may be higher than she is willing to pay. Ellie finds an unlikely ally in Pipwhistle, a mischievous Quibnocket who agrees to guide her through the dangerous wilds.
Together, they face down monstrous wolves, outwit greedy bog dwellers, and even come face to face with Aurathorn, the fearsome dragon who guards the Dragonscale Moss. But as Ellie soon learns, even in a realm of ancient magic, the greatest battles are often fought within.