Ernst Tanlee Ernst Tanlee was an Earth Alliance security operative prior to the Dalek invasion of Mutter ' s Spiral in 4162 . Six months prior to the invasion , he sent Alby Brook , a B - grade operative , to Vega VI to meet Kalendorf , one of the Knights of Velyshaa , in the hopes of opening up negotiations to form a defence pact against the Daleks . However , Brook was unable to make contact with Kalendorf before the Daleks ' arrival . After Alby made his escape from Vega VI in 4162 , Tanlee ordered him to travel to the Lopra system and make contact with Espeelius . However , before Alby had left the Vega system , the " Aquitania " was attacked by the Daleks and he was unable to proceed to the Lopra system . ( AUDIO : " Invasion of the Daleks " ) Following the reconquest of Guria by the Daleks in 4163 , Alby ' s scout ship was taken aboard an Earth Alliance battle cruiser , where his travelling companion Gordon Pellan was immediately killed at Tanlee ' s orders . Tanlee revealed to Alby that Pellan was a highly sophisticated Roboman who was being controlled by the Daleks for the better part of a year . He had spent almost all of this time in the company of Alby . Tanlee believed that , through Pellan , the Daleks were aware of the involvement of the Rhinesberg Corporation , for which Susan Mendes had worked as a geologist prior to the Dalek invasion , in Project Infinity and the existence of Project Infinity itself . ( AUDIO : " " Death to the Daleks ! " " ) However , Alby and Kalendorf later determined that the Daleks learned of it as a result of their raid on the Kar - Charrat library earlier in the 42nd century . ( AUDIO : " Project Infinity " ) Tanlee then provided Alby with an advanced ship and orders him to find Suz and determine everything that she knows about Project Infinity and , if necessary , kill her . ( AUDIO : " " Death to the Daleks ! " " ) After many years , the Dalek fleet ' s siege of the Sol System ended in favour of the Dalek Empire . The President of Earth is left with no option put to surrender to the Daleks , giving them control of the planet . Her final act before communications were lost was to transfer control of all surviving Earth Alliance forces to Tanlee ' s command . According to the Dalek Supreme , Earth was the final planet in the galaxy which posed a threat to the Daleks . Tanlee ' s first act was to contact Project Director Espeelius in the Lopra system , ordering him to begin the final phase of Project Infinity . In 4177 , Tanlee travelled to Carson ' s Planet , which was occupied by the Daleks before being liberated by the Earth Alliance , where he was reunited with Alby after nine years . He warned Alby that the Daleks had arrived on the planet and were searching for them both . Although Alby was able to make it to a spaceport and escape from Carson ' s Planet , Tanlee was captured by a Dalek patrol . ( AUDIO : " " Death to the Daleks ! " ) Following his capture by the Daleks , Tanlee was converted into a highly sophisticated Roboman in the same manner as Pellan . At the orders of the Dalek Emperor , he travelled to Lopra Minor to supervise the activation of Project Infinity . When Alby , Kalendorf and Mirana arrived on the planet five months later , they realised that Tanlee was now a Dalek agent . Although he intended to have the three of them converted into Robomen , Tanlee was killed when the Daleks from a parallel universe arrived on Lopra Minor and defeated the Enemy Dalek forces on the planet . ( AUDIO : " Project Infinity " )