Francesca attempted to loosen one of her weapons. Not being to do so to one or the other, she pulled herself up to a standing position on her weapons and grabbed out her dagger, Trusty. It was something she could trust in, in a pinch. First, she used her power to teleport to the spider's head area. Eyes tended to be a weak spot on anything, if she could take one or two out quickly, it might make the spider flinch or something. Enough for one of the stray rocks to tear it's way either, through the spider's armored Exoskeleton or a direct hit to the face. 

From there, she didn't wait too long. Either a rock would hit her, or the spider would grab her when it came to. Pushing what she was comfortable in doing, she teleported again... Onto one of the falling rocks. It was like falling in style really. Riding a throne down to where she needed. Looking up, there luckily didn't seem to be another above her. That was good. She didn't need a chunk of rock squishing her after all. Now she just needed to worry about the spider. "Let's dance you fool." She whispered as her music switched to something vocal.