The country Ravka is divided by the Shadow Fold – a strip of darkness that has monsters. And now, the fate of the nation is in the hands of the orphan girl Alina Starkova. When volcras attack her friend Mal, the girl's magical power awakens, and Alina is taken to the King's palace, where she is trained as one of the Grisha led by the mysterious Darkling.
Most of all, I remember the moment when Alina decides not to kill the magical deer for the amplifier, but Darkling does it instead of her to use Alina for his dark purposes. This book has taught me to remain merciful.