Timestamp #SJA17: The Eternity Trap

Sarah Jane Adventures: The Eternity Trap
(2 episodes, s03e04, 2009)

Timestamp SJA17 The Eternity Trap

Spooky fun.

Professor Rivers has returned, this time with the story of a haunted house. In 1665, Ashen Hill Manor was inhabited by magician Erasmus Darkening, who promised to replenish Lord Marchwood’s fortunes through alchemy. Marchwood’s two children, Elizabeth and Joseph, spied on the magician one night and vanished for eternity.

The professor tells this story to Sarah Jane, Clyde, Rani, and her assistant Toby. Sarah Jane is covering the story as Rivers studies the estate, and Luke remained home just in case something went wrong. They find out the estate has been plagued by other disappearances over the years.

It’s a beautiful home. It’s also haunted.

Sarah Jane doesn’t believe in ghosts. While the team roams the halls, they hear a series of church bells but cannot find the source. Clyde and Rani wander outside find a shed and a fountain while Sarah Jane examines a bookshelf. The books shuffle on their own, the fountain cycles on and off, and wet footprints appear in the shed as children giggle and music plays.

They hear a young girl crying, but it stops as Clyde pulls the sheet off of a mirror. The magician appears in the mirror and Clyde and Rani return to the house.

Everyone convenes around a lantern and talk about what they’ve all found. Toby gathers everyone’s mobiles after the gang calls home, and Rivers starts the experiment. The camera monitors flicker with the magician’s face before the nursery camera shorts out.

Meanwhile, Rani finds the magician’s face in the history book Sarah Jane was reading. The book had flipped itself to the right page. The gang returns to the control area as Rivers vanishes in the nursery and electromagnetic readings spike throughout the house.

The gang investigates only to find echoes of Marchwood’s children and the toys come to life. Rivers begs for help over the walkie-talkies, but the team can’t reach her. A message appears on the chalkboard: “GET OUT.”

Instead of getting out, the team tracks the energy and, against Sarah Jane’s better judgment, splits up.

Sarah Jane finds the echoes of Marchwood’s children. They warn her to leave before Erasmus takes her too. She ventures outside to discover a being with red eyes that is vanquished by the spirit of Lord Marchwood.

Rani and Clyde explore and find a secret passage to Erasmus’s lab. The discover a computer, which should not exist, along with Erasmus Darkening (who claims not to be a ghost). Before they are captured, they are rescued by Marchwood and his children.

Sarah Jane returns inside and hears the voice of Professor Rivers again, asking for help by name. She’s reunited with Rani and Clyde, then all three of them find Marchwood who beseeches them to leave. Sarah Jane reiterates that the curse doesn’t result in ghosts, and the gang meets up with Toby at the staircase in time to see all of the people who have disappeared in the house except Rivers. When Erasmus arrives, they all vanish.

Erasmus promises to come for the team and reveals that he is not exactly human. Sarah Jane and Toby seek out the computer while Rani and Clyde distract the so-called magician.

Toby tells Sarah Jane about a a creature that used to come into his room and watch him sleep. Meanwhile, Rani and Clyde are chased into the game room and watch as the pool table comes to life. They eventually run outside and are locked out of the house. They seek solace in the shed from the red-eyed being.

Sarah Jane and Toby find the computer and surmise that the house has been transformed into a portal to another galaxy, the pathway home for an alien who was stranded on Earth three centuries ago. The machine has malfunctioned and trapped the disappeared between dimensions.

Erasmus confronts Sarah Jane and Toby, preferring the eternal life of the accelerator over death in isolation. The red-eyed creature came through the portal, and Sarah Jane realizes that her friends are in trouble. After Lord Marchwood rescues Clyde and Rani, they are all reunited with Sarah Jane and Toby. Toby’s ghost-hunting technology inspires Sarah Jane.

After Erasmus took Marchwood’s children, the lord sought revenge and inadvertently damaged the device. Lord Marchwood uses that information to lure Erasmus into a trap that dissociates him into pure energy. The “ghosts” have all vanished and Rivers has returned, and Sarah Jane destroys the computer once and for all.

As the gang says farewell to Professor Rivers and Toby, they debate the existence of ghosts. Sarah Jane remains firm that ghosts don’t exist, but hesitates when she sees Marchwood’s family watching from the window.


This was a fun little romp that took advantage of actor Tommy Knight’s school exams to get the gang out of the house. For the first time, Luke, Mr. Smith, and the Bannerman Road house do not appear in the series.

The setting was quite beautiful. This location, Hensol Castle, was previously seen in Forest of the Dead and is used as a wedding venue in South Wales.

The story itself, which was quite relevant for the lead-up to Halloween for this publication, was an amusing ghost hunting expedition, but quite average otherwise. The spin on the haunted house story by making the menace a trapped malevolent alien was a good one.

Rating: 3/5 – “Reverse the polarity of the neutron flow.”


UP NEXT – Sarah Jane Adventures: Mona Lisa’s Revenge

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The Timestamps Project is an adventure through the televised universe of Doctor Who, story by story, from the beginning of the franchise. For more reviews like this one, please visit the project’s page at Creative Criticality.

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