The BBC have recently released the official synopses for both parts of The Eternity Trap, the fourth story of The Sarah Jane Adventures series three, and they are both now available to view on the BBC Press Office's official website. It should however be warned that they contain spoilers regarding the story's plot and as well as being available elsewhere online, the synopses can also be viewed here on this site below;

The Eternity Trap Part One
A haunted house, with mysterious whispers and secrets in the shadows attracts Sarah Jane's attention in the first part of a new story 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.

The Eternity Trap 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.

The first part of The Eternity Trap is scheduled for transmission in the United Kingdom and Ireland on the fifth of November at 4:35pm on BBC One. Part two will then air on the following day at the same time on the same channel and more information about this year’s transmission times can be found here. A trailer for The Sarah Jane Adventures series three which contains clips from this story can be viewed here and more information will be posted here on this site as soon as it becomes available. What do you think of these synopses?