A while ago felt Lyra heartstrings had found a certain ring to rule them all (or at least to capture Lyra’s interest. After all that type of ring is supposed to fit onto a human hand!  
It appears now that this may have set things in motion which let the halflings among horsekind to a tower of a wizzard brandishing the sign of the white hand (Saruman and the tower of Orthanc in Isengard). Now this of course is bound to make Lyra cause and get into trouble. Bon Bon may have her own view on all this and I leave it to the viewers interpretation if we are seeing Bon Bon’s (or rather special agent Sweetie Drop’s) attempt to get Lyra out of the trouble she got herself into or if Lyra somehow managed to talk Bon Bon into joining her into her exploits in pursuit of the white hand.  
I took pictures of this scene from a couple of angles (this is from one of the low angles), so there are several more of this scene comming up.