Roxy Davidova was still in bed, with Lizzie Bennett, when her mobile buzzed and screeched like a bandersnatch; she found it, underneath Lizzie, who was giggling with surprise at the strange noise and tickly sensation, but clapped a hand over her mouth, while Roxy took the call: “Roxy, it's Isa, Gordon has asked me to make a very important and special request to you – and Lizzie,” Roxy's eyes widened, dreading a request that she give him a litany on Macroeconomics for Dummies – but as she listened to her expression changed through desperation, pacification, expectation, acclamation and finally, realisation! “oh, Isa, of course we will – wait, I haven't asked her, are you sure it will be safe? what if it's distressing? what might be found there? oh. I see, of course – let me ask her,” and, covering the phone, she looked intently at Lizzie, “oh my dearest, that was my cousin, you've met her, the exemplary WPC Isa Urquhart, with a special request – would you feel yourself able to descend into The Cavern and see if you recognise anything? it's a big ask, I know, but I would go with you, it's perfectly safe, there's nothing gimcrack about the operation, and they have already explored it with a robot and seen what was sent to them on-screen from it's camera, but because you lived there, you would know if there were differences from what you remember, what do you think?” and Lizzie's eyes pooled with tears which began coursing down her cheeks, and Roxy wrapped her in her arms and crooned to her, for what seemed like an age, then remembered her phone and picking it up, offered it to Lizzie, who tentatively held it to her face as she had seen Roxy do: “hello?” she queried, surprised to hear the voice, almost as if Isa was in the room with them, “Lizzie, are you all right with what we are asking you to do?” and Lizzie surprised herself with the confidence in her own voice: “yes, WPC Isa Urquhart, I will do as you ask, along with Roxy,” and she heard Isa whoop with delight and she handed the phone back to Roxy for the two cousins to make the logistical arrangements.