As soon as he crossed the threshold of the tenement in Emerald Street, Simon immediately felt a strange shiver down his spine. He felt like the wind had touched him, even though the windows were tightly closed. He smiled at his thoughts: moving into this old building had been the best decision he had made this year. Up to now, his life had gone by predictably - work, friends, weekend get-togethers, everything lined up. Now he decided to make a change: to live alone, in a place full of history. In the stairwell, he was greeted by the slightly gruff smell of dust and old books. The neighbours, whom he barely noticed through a crack in the door, seemed almost unreal - shadows against the light of the street lamps. Simon walked to flat number 13, where old, rough walls, a creaky floor and... awaited him. the unusual mirror he had found in the bedroom. The mirror had a frame of red wood, carved in floral patterns, and the surface was unnaturally smooth and cold to the touch. Under the light of the lamp it shone in an unusual way, as if there was something more hidden beneath the surface. Simon had been pacing the flat for several hours, unpacking cardboard boxes and arranging books on shelves, but he kept glancing at the mirror from the corner of his eye. Something attracted him to it - maybe the fact that it looked like an object from another world? After midnight, when the flat was only illuminated by a thin moonbeam, Simon sat down in front of the mirror and looked at his reflection. At one point it seemed to him that his face was blurring and a red mist appeared in the background. He blinked and everything returned to normal. - I'm tired, that's all - he muttered to himself, trying to smile. However, he couldn't take his eyes off the surface of the glass. Suddenly he heard a quiet whisper, as if someone was standing right behind him. A shudder ran through him. The mirror shuddered, and after a moment letters began to appear on its surface, as if by an invisible hand: "If you are ready to see the truth, touch my heart." Under the frame, right in the middle, a tiny heart was carved. Simon held his breath. He heard footsteps in the corridor and an echo from behind the wall that did not sound at all like the usual sounds of the residents.... A question rose in his mind: would he dare to reach out to a place whose magic could change everything? Was he ready to learn the secrets of the old tenement, the true history of the mirror and the meaning of the scarlet whisper? Simon held out his hand, and the heart beneath his fingers pulsed with warmth. At that moment, the shadow of another person - or perhaps a being - appeared in the mirror, looking straight into his eyes. She was waiting. He waited too, uncertain whether to cross the boundary of reality....