Nico's first impulse was to take a swing at the monster with the branch she'd picked up off the ground (she must have picked it up, it was there in her hand. Strangely smooth and clean for something she'd picked up off the forest floor, but it was in her hand...)

But no, this was a memory, wasn't it? She couldn't defend him from the monster, because she hadn't been there. Instead, she skirted around it, reaching out to touch him.

"Raph, this is just a memory."

Or something. She still wasn't entirely sure she wasn't dreaming.

"Raph, look at me, I'm here!"