Mestra

A cursed father, a gifted daughter Mestra, daughter of the King of Thessaly, is gifted a unique ability by Poseidon: metamorphosis into any being she can imagine. Her father, on the other hand, is cursed.

As punishment for disrespecting the goddess Demeter, he is in possession of an unnatural, insatiable hunger. 

Devoted Mestra suggests using her new gift to help her father. But if his hunger is bottomless, how much will he take from her? Soon she must decide: will she keep helping her father survive, or finally break free? A jewel-like tale of human fallibility, Mestra confirms Madeline Miller as our high priestess of mythology.