SPB pg 91 Mother of the Bride

*after that conversation with 11 ,13 then goes to get a drink and go up to the window. She then hears clicks coming from outside. She then goes to check thinking it's either Ezio and 12 have made it here and Ezio's decided to use his hidden blades to take out a guard or something, perhaps 12 had access to a camera but those things were massive so that would be a complete no and the clicks isn't the type of noise Ezio's hidden blades make they are more like a shing sound so 13 had not a clue on what the noise was it could be Ezio or 12 maybe someone else for that matter. 13 was startled by this but didn't want to say out instead she stayed at the window till further notice of the mysterious clicking noise*