The sound of that... Whatever it was, it put her instantly on alert. As if anticipating one of those shadow creatures to come around the corner and they would be in for another tiring fight. Not that Xion wasn't accustom to the fights. But after those nightmares they had dealt with, she wouldn't have minded a little reprieve from all things shadow-monster-fightin'. But that didn't stop her by any measure from grasping at thin air at the side.

Reaching out... and feeling nothing come. Her grip was empty and so with it did something feel like it was sinking within her. A sense of that sickeningly vulnerable dread that made her almost weak at the knees before she would hold herself sturdy. It only lasted for a moment though because shortly thereafter, a boy- about their age, really. At least physically. While she didn't lower her hand quite yet, she did... at least manage the slightest of nods to his question. Studying him cautiously... and whatever was flying along with him. Subconsciously stepping nearer to Roxas but still side by side with him.