An unexpected guide

Elisa's heart sank. Then it began to beat fast and hard. Slowly, she turned around and gazed at the strange man. 

He was smiling as he extended a hand, "Take a seat. I believe you have questions for me, no?"

Elisa felt her throat dry up as she swallowed down hard. Trying her best to control her emotions, she clenched her hands and sat down. Facing the man directly as she asked, "Who are you…?"

Who is this man exactly? And what did he mean by he had seen hair like Elisa's, and some were fake and could be found from the other side of the wall…?

Seemingly able to read Elisa's mind, the man let out a chuckle. "I'm Alexander, the greatest traveler you will ever meet in this world. Ha ha ha." A hearty laugh escaped his lips as he further added, "I take it you haven't gone to other places yet? … Not even the other side of the wall? Or have you?" He looked at Elisa and smiled mysteriously. "You're interested to know more, aren't you?"