 The Doctor picks up Clara and takes her back to Latimer 's mansion , placing her under medical care of Strax . He collects the ice fragments from the governess and places them in a souvenir London Underground biscuit tin . He and Vastra travel to Simeon 's lab , where the Doctor notes the Intelligence 's plan to replace humanity with ice creatures and holds up the tin with the necessary DNA . Dr Simeon grabs the tin and opens it only to find the memory worm , which latches on to him . The Doctor states that the Great Intelligence , which has been existing as a mirror of Dr Simeon 's thoughts , will vanish with the erasure of Simeon 's memories . Instead , the Intelligence reveals that it existed long enough that it can now control Simeon 's body , which it uses to attack Vastra and the Doctor . The influence of the Great Intelligence quickly wanes , and Simeon falls dead . Outside , a salt @-@ water rain has started , and the Doctor sees that another psychic ability has taken control of the snow from the Great Intelligence : the Latimer family , crying for Clara . Strax informs the Doctor upon his return to the Latimer mansion that Clara only has moments left , and she passes away as the Doctor returns the TARDIS key to her . At her funeral , the Doctor reads Clara 's full name on her tombstone and realises she is the woman he met in " Asylum of the Daleks " who became a Dalek , whom he refers to as " Soufflé Girl " . He gleefully announces that a person dying twice is an impossibility and , bidding farewell to his allies for now , the Doctor departs in the TARDIS to investigate and find Clara . The episode concludes in contemporary times , where a young woman resembling Clara walks through the same graveyard , pausing by Clara 's tombstone . 
 The Doctor <a href='uninflect' title='1'><mark>picks</mark></a> up Clara and <a href='uninflect' title='2'><mark>takes</mark></a> her back to Latimer <a href='null_genetive' title='3'><mark>'s</mark></a>mansion , placing her under medical care of Strax . He <a href='uninflect' title='4'><mark>collects</mark></a> the ice fragments from the governess and <a href='uninflect' title='5'><mark>places</mark></a> them in a souvenir London Underground biscuit tin . He and Vastra travel to Simeon <a href='null_genetive' title='6'><mark>'s</mark></a>lab , where the Doctor <a href='uninflect' title='7'><mark>notes</mark></a> the Intelligence <a href='null_genetive' title='8'><mark>'s</mark></a>plan to replace humanity with ice creatures and <a href='uninflect' title='9'><mark>holds</mark></a> up the tin with the necessary DNA . Dr Simeon <a href='uninflect' title='10'><mark>grabs</mark></a> the tin and <a href='uninflect' title='11'><mark>opens</mark></a> it only to find the memory worm , which <a href='uninflect' title='12'><mark>latches</mark></a> on to him . The Doctor <a href='uninflect' title='13'><mark>states</mark></a> that the Great Intelligence , which <a href='uninflect' title='14'><mark>has</mark></a> been existing as a mirror of Dr Simeon <a href='null_genetive' title='15'><mark>'s</mark></a>thoughts , will vanish with the erasure of Simeon <a href='null_genetive' title='16'><mark>'s</mark></a>memories . Instead , the Intelligence <a href='uninflect' title='17'><mark>reveals</mark></a> that it existed long enough that it can now control Simeon <a href='null_genetive' title='18'><mark>'s</mark></a>body , which it <a href='uninflect' title='19'><mark>uses</mark></a> to attack Vastra and the Doctor . The influence of the Great Intelligence quickly <a href='uninflect' title='20'><mark>wanes</mark></a> , and Simeon <a href='uninflect' title='21'><mark>falls</mark></a> dead . Outside , a salt @-@ water rain <a href='been_done' title='22'><mark>has</mark></a> started , and the Doctor <a href='uninflect' title='23'><mark>sees</mark></a> that another psychic ability <a href='been_done' title='24'><mark>has</mark></a> taken control of the snow from the Great Intelligence : the Latimer family , crying for Clara . Strax <a href='uninflect' title='25'><mark>informs</mark></a> the Doctor upon his return to the Latimer mansion <a href='null_relcl' title='26'><mark>that</mark></a>Clara only <a href='got' title='27'><mark>has</mark></a> moments left , and she <a href='uninflect' title='28'><mark>passes</mark></a> away as the Doctor <a href='uninflect' title='29'><mark>returns</mark></a> the TARDIS key to her . At her funeral , the Doctor <a href='uninflect' title='30'><mark>reads</mark></a> Clara <a href='null_genetive' title='31'><mark>'s</mark></a>full name on her tombstone and <a href='uninflect' title='32'><mark>realises</mark></a> she is the woman he met in " Asylum of the Daleks " <a href='null_relcl' title='33'><mark>who</mark></a>became a Dalek , whom he <a href='uninflect' title='34'><mark>refers</mark></a> to as " Soufflé Girl " . He gleefully <a href='uninflect' title='35'><mark>announces</mark></a> that a person dying twice is an impossibility and , bidding farewell to his allies for now , the Doctor departs in the TARDIS to investigate and find Clara . The episode <a href='uninflect' title='36'><mark>concludes</mark></a> in contemporary times , where a young woman resembling Clara <a href='uninflect' title='37'><mark>walks</mark></a> through the same graveyard , pausing by Clara <a href='null_genetive' title='38'><mark>'s</mark></a>tombstone . 
The Doctor pick up Clara and take her bacc to Latimer  mansion , placing her under medical care of Strax . He collect the ice fragments from the governess and place em in a souvenir London Underground biscuit tin . He and Vastra travel to Simeon  lab , where da Doctor note tdaIntelligence  plan to replace humanity w/ ice creatures and hold up the tin with thdaecessary DNA . Dr Simeon grab the tin and open it only to find the memory worm , which latch on to him . The Doctor state that the Great Intelligence , which have been existing as a mirror of Dr Simeon  thoughts , will vanish wiwithe erasure of Simeon  memories . Instead , the Intelligence reveal that it existed long enough dat it can now control Simeon  body , which it use to attack Vastra and the Doctor . Thedafluence of the Great Intelligence quickly wane , and Simeon fall dead . Outside , a salt @-@ water rain done started , and the Doctor see tdatanother psychic ability done taken control of the snow from the Great Intelligence : the Latimer family , cryin for Clara . Strax inform the Doctor upon his return to the Latimer mansion Clara only got moments left , and she pass away as the Doctor return the daDIS key to her . At her funeral , the Doctor read Clara  full name on her tombstone and realise she is the woman he met in " Asylum of the Ddaks " became a Dalek , whom he refer to as " Soufflé Girl " . He gleefully announce thdat person dying twice is an impossibility and , bidding farewell to his allies fa now , the Doctor departs in the TAdaS to investigate and find Clara . The epidae conclude in contemporary times , where a young woman resembling Clara walk thru the same graveyard , pausing by Clara  tombstone .