A Court of Thorns and Roses by Sarah J. Maas

Nineteen-year-old Feyre Archeron is a skilled huntress struggling to provide for her family in a harsh, impoverished world. One winter day, she kills a massive wolf in the woods, only to discover it was a faerie in disguise. As punishment, Feyre is taken to the magical land of Prythian, home to the fae, and bound by a treaty to live there. She is brought to the Spring Court, ruled by the enigmatic and brooding High Lord, Tamlin.

As Feyre adjusts to life among the fae, she uncovers a dark curse plaguing Prythian and the fae courts. When a powerful faerie named Amarantha takes Feyre captive, she is forced to endure a series of brutal trials. Feyre must use her wit and strength to survive and protect those she has come to care for, including Tamlin.