Martha Tyler Martha Tyler was lived with her grandson Jack Tyler in Fetchborough in the 1970s . She worked in the kitchen at Fetch Priory . She was a practising white witch and could read people ' s fortunes . By 1977 , her husband had died . In July 1977 , a security team was called by Dr Fendelman to guard the priory after the body of a hiker was found in the neighbouring woods . After the leader of this team , David Mitchell , offended her , Martha told Adam Colby and Thea Ransome to tell Fendelman she would return " when the others is gone " . When she returned to her cottage , Jack and Leela found Martha to be in a petrified state . She spoke of something " hungry for [ her ] soul " . Leela fetched the Fourth Doctor and , together , they attempted to revive the old lady by creating a commonplace scenario , talking of tea and fruitcake . The Doctor finally succeeded after he described a method of making fruitcake she disagreed with . Martha told the Doctor she had the " second sight " and described the being she had seen , with her mind , in the woods . She told the Doctor it didn ' t have a human shape . The Doctor left and she gave Leela a charm before she followed him . With them gone , Martha told Jack that the being was " a woman " . When Jack returned from scouting out the priory , as the Doctor requested , he found Martha using her tarot cards . Jack told her the Doctor wasn ' t back , and she replied that one should never trust a man wearing a hat . When her grandson commented that her husband , his grandfather had , she replied that he was a " a wicked old devil " . Jack said he wore one , but Martha said that was different , as she had given it to him . She offered him a charm and , despite his disbelief and objections , he agreed to take it , saying it was to please her . Martha then asked for the cartridges from his gun and said she was going to fill them with salt , as that was " the best protection there be " . Jack asked if this involved " evil spirits , again " . She told him he could laugh , but she knew the old ways . Martha told Jack he was best getting back to the priory , as neither of them would want Fendelman ' s team " meddling in things they don ' t understand " . At Fetch Priory , Martha and Jack encountered the Doctor and Leela as a Fendahl een bore down on them . The three human s found their legs rooted . The Doctor took Jack ' s gun and killed the creature , freeing them . After the Doctor and Leela freed Colby from the cellars , he joined Martha and Jack and blamed the old woman for recent events , Maximillian Stael having said that Martha ' s visions coming true had led to the making of his plans . Jack told him to watch his mouth after he called Martha a " stupid old witch " . Leela also berated Colby , saying he had almost gotten them killed in the cellars . When the Doctor found himself in need of salt to combat the Fendahl , Martha asked Leela and Jack for their charms and handed them to the Time Lord . They contained rock salt . The Doctor tasked her with collecting as much salt as she could find , of any kind . Having done so , she brought it to Fendelman ' s lab on a trolley . The Doctor told her and Jack to return to their cottage . There , they sheltered under a table , where Colby joined them after a time , as Fetch Priory was engulfed by the flames of the Doctor ' s controlled implosion . Having fled the priory themselves , Leela asked the Doctor if it was okay to leave the others , and he told her , " Yes . Probably at Mrs Tyler ' s now , eating plum cake off her best china . " ( TV : " Image of the Fendahl " )