Orren is more than capable of obscuring the echo his thoughts and feelings within the Force. His work in the Mandalorian Wars as Revan's diplomat gave him a great deal of practice, and he's wary enough of Kreia that his defenses are high as she steps forward.

But Meetra's name cracks those walls. His eyes widen and a ripple of surprise disturbs the eddies of the Force around him.

"Meetra?"

It doesn't seem possible, not with the way things ended after Malachor. His sense within the Force closes again and his eyes narrow - scrutinizing Kreia for any sign of falsehood.

"Atris brought her back?"

It strikes him as unlikely, given her aforementioned pechant for judgement and ability to hold a grudge, and Atris had been furious with Meetra ever since she went to join Revan.