Olga loves the stories of the old cartographers and pores over their ancient books and maps, trying to unlock their secrets. Sometimes, she can even feel through the maps—almost see into them — as if by magic.

When the bird army kidnaps Olga’s sister, Mira, Olga knows that only she can venture into the Republic of Birds to rescue her. But first, she must unlock her magical ability.

As her journey takes her into the hidden world of the Iagas and the wilds of the Unmappable Blank, Olga discovers the truth about the war with the birds—and learns just how much is at stake in her quest to save her sister.

Inspired by Russian folklore.