Seventy-two hours before the sun dies, a remote mountain town clings to survival through ceremonial masks that erase pain—and with it, humanity.

Rey, a former soldier, returns home to mend the fractures in his family and his community. But every mask worn to keep the darkness at bay comes at a terrible cost: emotions erased, memories dulled, love forgotten. As panic spreads and faith falters, Rey is forced to confront the unraveling of his marriage, the bitterness of his brother, and the suffocating grip of a town convinced the masks will save them.

When the masks reveal their true nature, Rey must decide whether to surrender to the calm of forgetting—or fight for the fragile threads of love, memory, and humanity that remain.

Shadow on the Sun is a haunting and deeply human work of literary horror, blending the intimacy of family drama with the dread of cosmic inevitability.