[She sneaks a look back over there, only to find the mysterious man gone. She offers no comment when she returns her stare to the map.]

South of Geosenge Town is Cyllage City, which is normally where we'd head back to Lumiose City through the Connecting Cave, but south of that is Ambrette Town. The Glittering Cave is further past that, but sadly to get back to Lumioise City, we have to double back to Ambrette and Cyllage.

[She understands that's it a long way out of their intended route, but Glittering Cave was one of the major landmarks she intended to study, so she offers an alternate solution.]

I understand if you don't want to go so far out of the way, so we can split up at Cyllage. I'll go to the Glittering Cave and you can do whatever.