Mara cuts boulders and uses a Force Bubble

Jaina reached the doorway. All around them—ceiling, walls—soft rock crumbled. Mara pushed Jaina ahead of her, reaching deep inside herself, trying to divert each stone as it fell. She split a dozen with her lightsaber.
“But they fell too thickly. As rock dust choked off the light ahead and behind her, she pushed Jaina down, fell on her, and pushed out with the Force. She kept the presence of mind to extinguish her lightsaber.
The noise went on, like a powerful waterfall, for several age-long seconds.
Jaina rolled out from under her. She’d killed her lightsaber, too. In utter darkness, Mara couldn’t see what Jaina was doing, but she did hear a plaintive “Ow!”
“Hit your head?” Mara asked quietly.
“Slightly.” Momentary silence. “You’re keeping that up with the Force?”
“No. Just my radiant personality.” She softened her voice. “Do you still have the rebreathers?”
- New Jedi Order: Balance Point