Como a Catwoman sabia onde Bane estava?

Selina sabe porque é uma armadilha, ela está na liga com Bane neste momento.
Do script:

Batman picks off more and more Mercenaries. Screams echo...

Batman follows Catwoman through the dark tunnel.

CATWOMAN - Just a little further.

A grate slams down, separating them - the lights come on. He is deep inside.

INT. BANE’S LAIR, SEWERS - CONTINUOUS

Mercenaries look down on him from above. Catwoman turns.

CATWOMAN - I had to find a way to stop them trying to kill me.

BATMAN You’ve made a serious mistake.

A romancização oficial do filme torna a série de eventos um pouco mais clara. Selina estava em aliança com Bane e atraiu Batman para seu covil.

A heavy steel grate slammed down between them, like a portcullis in a medieval fortress. Bright halogen lights flared overhead, exposing a lair hidden deep within the sewers. A small army of mercenaries glared down from various elevated gantries and platforms. The catwalk led between twin waterfalls that poured into a foaming channel one level below. There was some kind of headquarters located beyond the waterfalls—much like in the Batcave.
“Sorry,” Catwoman said from the other side of the grate. “I had to find a way to stop them trying to kill me.”
Batman realized then that she had deliberately lured him into a trap. He was disappointed by her betrayal.
“You’ve made a serious mistake,” he growled.