Silhouette ( novel ) Silhouette was one of three Twelfth Doctor novels published in September 2014 as part of the BBC New Series Adventures line . Publisher ' s summary . " Vastra and Strax and Jenny ? Oh no , we don ' t need to bother them . Trust me . " Marlowe Hapworth is found dead in his locked study , killed by an unknown assailant . This is a case for the Great Detective , Madame Vastra . Rick Bellamy , bare - knuckle boxer , has the life drawn out of him by a figure dressed as an undertaker . This angers Strax the Sontaran . The Carnival of Curiosities , a collection of bizarre and fascinating sideshows and performers . This is where Jenny Flint looks for answers . How are these things connected ? And what does Orestes Milton , rich industrialist , have to do with it all ? This is where the Doctor and Clara come in . The Doctor and his friends find themselves thrust into a world where nothing and no one are what they seem . Can they unravel the truth before the most dangerous weapon ever developed is unleashed on London ? Plot . In late Victorian London , Marlowe Hapworth rushes home after visiting the Frost fair and the Carnival of Curiosities to write to Madame Vastra . His manservant Carlisle later finds him dead in his study , having been stabbed in the back by his letter - opener . Elsewhere , Rick Bellamy is reduced to skeletal remains by a mysterious figure after leaving the company of his friend Strax . Neither Hapworth nor Bellamy are the first murder victims of this nature and so the Paternoster Gang set out to investigate . The Doctor refuses Clara ' s request to take her to visit King Arthur . Instead the Doctor is more interested in a power spike detected by the TARDIS in Victorian London . They are pointed to the Frost Fair and the Carnival of Curiosities where the Doctor is unimpressed by most of the entertainment on offer . He is intrigued by the Shadowplay , however , as he notes that there are clearly no strings attached to any of the shadow puppets . The puppeteer , a woman named Silhouette , does not reveal her secrets . Outside , the time travel lers meet Jenny Flint who is questioning people at the Fair about Hapworth ' s murder while Vastra investigates the scene of the crime back at Hapworth ' s home . The Doctor heads off to meet with Vastra while Clara and Jenny speak about what has happened since their last meeting . Meanwhile the investigations continue as Strax seeks to avenge Bellamy ' s death . He obtains a list of all of the recent murder victims yet finds no patterns linking them together , apart from that fact that they seem to have been down on their luck . He searches the ally in which Bellamy was killed and meets a strange man dressed as an undertaker but finds no answers . Elsewhere the Doctor meets Vastra as Hapworth ' s home . They rule out his death being accidental or suicide . They only clues they have are his ticket from the Carnival from the previous day and three origami bird s found in his study that have now disappeared . Back at the Fair , Clara meets a man who she is surprised to find out is named Oswald , as well as his employer , an industrialist named Orestes Milton . The Doctor swiftly reappears and speaks with Milton . Once Milton leaves , the Doctor ushers Clara along to follow him . The Doctor was made more than suspicious by Milton ' s vocabulary as he used words like " debrief " and " origami " which do not come into English use until the later stages of the Second World War and the 1950s respectively . They follow him to a street and see him leaving a house which they doubt is where he actually lives considering how run - down it is . They enter the house themselves and find some more origami birds by the window . At one point , they disappear . Unbeknownst to the Doctor and Clara , who exit the house and meet with Jenny once more before turning in for the night back at Paternoster Row , the paper birds fly off and return to Silhouette who has met up with Milton . One bird unfolds and on it is written the Doctor and Clara ' s conversation . Milton becomes worried that the two of them will stumble across something important and sends Silhouette away to talk to Affinity . The Gang splits up the next morning to further their investigations . Clara meets up with Oswald and asks for directions to one of Milton ' s factories . Oswald directs her to Alberneath Avenue but is unable to accompany her as he has a class to teach . Clara reaches the empty factory via cab and breaks her way in , only to be attacked by flying origami birds . Strax , his investigations coming up fruitless , is nearby and hears someone screaming for help . Strax burns the paper bird with an incendiary pod and helps patch up Clara ' s cuts . Strax concludes the birds were drones before they leave to meet back up with the Doctor and Jenny at the Frost Fair . Meanwhile , Milton rests by his holographic fire place and speaks with Silhouette , who is made uncomfortable by Milton ' s suggestion of killing the Doctor and his associated before they discover something they shouldn ' t . Milton thus begins recharging her implant power source to stop her self - will from surfacing . At the Fair , the Doctor secretly investigates Silhouette ' s tent and her puppet figures . He hides as a strange man comes in looking for Silhouette . For a moment , it looks to the Doctor as if the man doesn ' t have a face . When the Doctor leaves the tent and rejoins Jenny , he is spotted by Michael Smith the Strong Man . They sort out any problems of breaking and entering as Clara and Strax appear . Michael tells them he has known Silhouette for years but recently she has changed . He arranges to meet with them later after his show to tell them what he can but the meeting never comes . Silhouette later confronts Michael for giving away some of their secrets and she manipulates the chain tattoo on his chest to crush him . The Doctor and the others find him murdered , forcing them to rely on the Doctor ' s other informant at the Carnival . They attend the Carnival of Curiosities where Alfie the showman introduced to the audience " the amazing Lizard Woman " and Vastra is revealed on stage . After some time , the Doctor , Clara and Strax head back to Alberneath Avenue while Jenny stays to keep an eye on Vastra . Vastra is allowed private access backstage by Alfie but she received a visit from a man in a dark cloak and mask called Festin . Festin removes his mask , revealing that Vastra isn ' t the last Silurian after all . The Doctor , Strax and Clara speak with an elderly man named Anderson at the tavern . He tells them search out Billie Matherson , a cart driver who helped move the equipment from the empty factory on Alberneath Avenue . As they are doing this , Vastra and Festin hold a stakeout before attempting to sneak into Milton ' s house . Once inside , Vastra is trapped by a force field but Festin refuses to find a way to deactivate it . He takes of his mask and his Silurian features disappear as he becomes a man with no face . Jenny has Jim Stone from the Frost Fair lead her to Milton ' s house where she finds Vastra . They shut off the force field but as Jenny gives Vastra a hug , Jim reactivates it rendering them both trapped . Once more , his features disappear to reveal a blank face . Milton arrives and as Affinity leaves to assist Empath , Milton explains that both Affinity ( originally named Alfie , the showman ) and Silhouette were once ordinary workers at the Carnival with great talents , of personality and puppetry respectively . Milton altered their DNA to enhance those talents , turning them into weapons . Vastra and Jenny deduct that they were behind the deaths of Hapworth and Bellamy . Elsewhere , the Doctor , Strax and Clara look for Billie Matherson . As the Doctor sets off for a bit to search for him alone , Affinity arrives and tries to grasp the Doctor ' s attention by disguising himself as the Doctor ' s previous lives but the Doctor ignores them all . Affinity this decides that he has to meet up with Empath and find Billie Matherson before the others do . " to be added "