Clara is preciously innocent. Mab dips her head once. "Then Clara, I gift you with my true name, that should the need arise you may call on me and I will come." She lifts her hand, palm up to be certain no means magical or physical can hear and to be certain she has Clara's undivided attention. "My name is Mab, call me three times and I will come." It should be rather obvious that had she given her true name out and someone had said it three times she might just show up therefore she gave it out very rarely. A true summoning would make it impossible to ignore but Mab's attention could be drawn with her name. "Do not tell others this name, it can cause... problems if used too frequently."