Telepathy

"That's...easier said than done, no?" Falkor said as he looked at Lara straight in the eyes.

Right, it was easier said than done. Of course, it was thanks to the guide, who seems to be on alert and would fight against Falkor and Isobel if they were to do something like that.

And since the guide was like that, it would be safe to assume that everyone in this place would be like that.

After all, the guide could be seen as the representative of a group, and that was definitely true.

And if everyone in this place was on the alert for Falkor and Isobel, then it would only make sense that they would be found out sooner or later, which is why it was easier said than done.

What's more, since they just came to this place, they didn't know anything about this place. They didn't know where they would be able to meet Lara's mother nor did they know what road or hallway they needed to walk on to get out of this place.