The Last Stair to Morning. Sunless, #1

In the underground city of Veyr, darkness is worshipped, sunlight is feared, and every child is taught the same warning: the surface is death. For five hundred years, the people of Veyr have lived beneath stone, ruled by the High Warden and protected, they are told, from a sun that burns human skin to ash. Maps end where the government says the world ends. Questions are dangerous. Curiosity is a crime.
Niko Vale is only a powerless mapmaker's apprentice, trained to copy the approved shape of the city and never ask what lies beyond its sealed walls. But when he discovers an ancient hidden staircase leading upward, everything he has been taught begins to crack. At the top of the last stair, Niko finds the impossible: blue sky, green trees, birds, wind-and sunlight that does not kill. The truth is more dangerous than the lie.
Veyr was never built to protect humanity from the sun. It was built to imprison the descendants of rebels, while the ruling class buried the evidence of their ancestors' crimes beneath centuries of fear. Now hunted by the government, Niko must decide whether to stay silent and survive, or reveal a truth powerful enough to collapse an entire civilization. With the help of Seren, a soldier ordered to arrest him, he begins a rebellion not for power, but for morning itself.
The Last Stair to Morning, Book One of the Sunless series, is a sweeping fantasy and climate-fiction adventure about hidden worlds, manufactured reality, forbidden truth, and the courage it takes to step into the light. This cinematic novel is perfect for readers who love dystopian mysteries, underground civilizations, rebellion stories, and epic journeys from darkness into hope.