Bane ( Invasion of the Bane ) The Bane were an alien species who attempted to conquer Earth in secret . Biology . The Bane were split into two types , the children and the Bane Mother . The Bane children were large , green , vaguely cephalopod - like creatures . They had seven ambulatory tentacle s , three on each side and another on their end . They had a large , single eye on their heads and rings of tentacles around their mouths . There were pads on the undersides of their seven tentacles which allowed them to walk across ceilings and floors , and a turtle - like shell on the back . The Bane children had the ability to read and modify the memories of human s . ( TV : " Invasion of the Bane " ) The Bane Mother was much larger than her children and a blue - green colour . She showed none of the intelligence of the Bane children . She was the one who secreted the Bane chemical . ( TV : " Invasion of the Bane " ) Mr Smith at one point claimed that the Bane reproduced by laying egg s . ( TV : " The Lost Boy " ) The Bane had a physical aversion to cell phone transmissions and even more so to an Arcateenian ' s superluminal communications technology . They could also be injured by a spray Sarah Jane Smith kept in her attic . ( TV : " Invasion of the Bane " ) Their blood was apparently known for being slippery , as Korst Gogg Thek Lutiven - Day Slitheen exclaimed while pursuing Luke Smith that he was " as slippery as the Bane blood that made [ him ] . " ( TV : " The Lost Boy " ) It was likely white or cream in colour , as when Miss Wormwood exploded some Bane about to kill Clyde Langer and Luke , the remains that were splattered on the two boys were white / cream in colour . ( TV : " Enemy of the Bane " ) Culture . When individual Bane failed , they would be eaten alive . Predation was a major part of their culture . The Bane had a saying , " the sweetest delicacy is the tongue of an enemy who has looked at you and licked his lips " . ( TV : " Invasion of the Bane " , " Enemy of the Bane " ) Mr Smith stated that because they were an oviparous species , the Bane found the navel of mammals offensive . However , as this claim was made as part of a deceptive ruse by Mr Smith for his own purpouses , the validity of that statement was unclear . ( TV : " The Lost Boy " ) Technology . The Bane made use of image translators to appear as human s ( TV : " Invasion of the Bane " ) and phonic disruptor s for defence ( TV : " Enemy of the Bane " ) . They were also capable of creating life ( TV : " Invasion of the Bane " ) . History . Circa 2008 , the Bane attempted to invade Earth . They developed a drink , Bubble Shock ! , which was highly addictive due to the Bane enzyme . The Bane children took the form of humans using image translators and ran the factories to produce the Bubble Shock ! . Unfortunately for them , 2 % of the population was immune to the enzyme . In order to combat this , they scanned all the people who came into the factory and created an archetype to experiment on . Eventually , Sarah Jane Smith learned about the actions of the Bane . She confronted Mrs Wormwood in the Bubble Shock ! factory and was able to escape with the archetype , despite several assassination attempts . The Bane were forced to step up their plans and took control of all the Bubble Shock ! drinkers . Sarah Jane , the archetype and Maria Jackson stopped the Bane Mother , though Mrs Wormwood was able to escape . Sarah Jane adopted the archetype , naming him Luke Smith . ( TV : " Invasion of the Bane " ) Mrs Wormwood was held responsible for her failure to invade Earth , and was hunted by the Bane . ( TV : " Enemy of the Bane " ) At some point after this , the Bane went in search of the remains of Horath , hiring the Sontaran Kaagh as a mercenary . When he encountered Mrs Wormwood in the Snake Tongue Nebula , they came to an agreement to join forces . Mrs Wormwood came back to Earth , asking Sarah Jane for help obtaining the Tunguska Scroll , which was kept in the Black Archive s . At the same time , the Bane had followed her to Earth , with one even infiltrating UNIT . Though the Bane tried to stop them , Sarah Jane took the Tunguska Scroll and Mrs Wormwood and Kaagh were able to escape with it , taking Luke Smith with them . Using the Tunguska Scroll to track Horath ' s remains , they found a stone circle that contained a wormhole to Horath ' s body . When Mrs Wormwood tried to get Luke to join them , Kaagh and Wormwood fell out , leading to Wormwood betraying him . Seeing that he lost , Kaagh dragged her into the wormhole , shutting it down . ( TV : " Enemy of the Bane " ) One Bane was captured by the Krulius and stored in a data - pod . The Krulius later used his digital bio - converter to upload the Bane ' s bio data onto the internet . There it was found by Mr Smith , Rani Chandra and Clyde Langer who sent the Bane back to it ' s original place . ( COMIC : " Monster Hunt " ) Another Bane was kept at the Doloth Star Base . When the Judoon caught the Krulius all his captured aliens were set free . However the Krulius had managed to take clone cell samples of his former captured aliens with him , which allowed him to grew perfect copies of these aliens . ( COMIC : " Return of the Krulius " ) In late 2010 , two Bane took part at the army of alien slaves led by the Krulius to attack Sarah Jane ' s house . When Clyde defeated several of the aliens , the Bane regrouped with the army and the Krulius ordered them to retreat . Sarah Jane thought that the aliens were under some kind of hypnothic influence . ( COMIC : " Defending Bannerman Road " )