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Hila Tacorien, the individual who manifested as the Caliburn Ghast or the Witch of the Well, was a human time traveller and, according to the Eleventh Doctor, the great-great-great-great-great-granddaughter of Emma Grayling and Alec Palmer.



The Witch of the Well

Hila manifests as a ghost (TV: Hide)

While testing a time ship, Hila accidentally landed in a pocket universe with the Crooked Man. While she was only there for around five minutes from her perspective, her presence in N-Space was felt from the beginning to the end of the planet Earth, manifesting as the ghost that haunted the Caliburn House. Over the years, she was given many names: the "Wraith of the Lady", the "Maiden in the Dark", the "Witch of the Well" and the "Caliburn Ghast". According to Professor Alec Palmer, she was mentioned in local Saxon poetry, and parish folk tales.

In the 17th century, a local clergyman saw her, and wrote that "her presence was accompanied by a dreadful knocking as if the Devil himself demanded entry." During World War II, American airmen stationed at the house left "offerings of tin Spam." The tins were found in 1965, bricked up in the servants pantry, along with "a number of hand written notes, appeals, to the ghost: "for the love of god, stop screaming."" (TV: Hide)


Hila was finally saved when the Eleventh Doctor, through the power of Emma Grayling, entered the pocket universe to retrieve her. She crossed through the wormhole and arrived at the Caliburn House in 1974. According to the Doctor, her status as a pioneer explorer of time made her a fixed point in time, thereby preventing her from being returned to her own time; however, he soon revealed to her that Emma and Alec were her ancestors. (TV: Hide)


When speaking to Clara Oswald through a time fissure from the Elizabethan era, he identified her as the "Wicked Witch of the Well" to the soldiers surrounding him. (TV: The Day of the Doctor)