The Decaying Ruins. The Age of Mirrors

One night, Rena, whose reflection suddenly disappears, sees in the mirror him — the one who controls her nightmares, the Keeper of Nightmares. When she gives the correct answer to the riddle, she frees him from the prison of the mirror, unaware that she will become the next victim of the curse. An unusual deal with the Keeper of Nightmares takes her to an ancient kingdom, the heart of which weakens day by day... Rena, whose fate was rewritten in an instant, must unravel secrets in a land she has never known.