The BBC Press Office have a new press release for the fourth story from The Sarah Jane Adventures series three, “The Eternity Trap”, and it includes the synopses for both parts of the story. This story see’s Sarah Jane, Professor Rivers, and the gang investigating a mysterious haunted house.

Part One
A haunted house, with mysterious whispers and secrets in the shadows attracts Sarah Jane's attention in the first of a new, two-part adventure, written by Phil Ford and directed by Alice Troughton.

When Professor Rivers and the gang investigate an old legend, a monstrous creature appears in the night as the terrifying grasp of Erasmus Darkening reaches out from centuries past.

Part Two
Sarah Jane and the gang discover the secrets of Erasmus Darkening, in the second and concluding part of The Eternity Trap, but are they too late? As ghosts from the past rise up, and the quest to find the missing children reaches a climax, it seems that nothing can stop the ancient alchemist's rise to victory.

Sarah Jane Smith is played by Elisabeth Sladen, Professor Rivers by Floella Benjamin and Erasmus Darkening by Donald Sumpter.

The Eternity Trap part one airs on Thursday the 5th of November, and part two on Friday the 6th of November, both at 4.35pm on BBC One and BBC HD. The synopses for the fifth story, “Mona Lisa’s Revenge"”, will be released and posted here next Thursday. You can visit the official SJA site here.