On a desolate moon where the stars seem to whisper, the Doctor must protect Sarah Jane before she is reduced to ash with all other life on Thalyss.

The Doctor and Sarah Jane arrive on the abandoned moon of Thalyss, where a ruined observatory hums with a pulse that should not exist. Among crumbling journals and shattered instruments, Sarah finds her own name written in countless hands, centuries old.
What begins as curiosity becomes horror as the truth unravels: the stars are whispering, their voices not metaphor but a predatory intelligence reaching across time and thought. Shadows twist, memories bleed into reality, and the line between mind and world begins to collapse.
To save Sarah Jane from being claimed by the whispers, the Doctor must silence the echoes of the stars, before they consume her forever . . .