For some people, after experiencing grief or trauma, they may choose selective amnesia, such as forgetting a specific person or a certain memory, without affecting other memories.
If it's not a brain issue, then Albert Sullivan can only suspect that it's psychological. He spoke softly, "Xaviera, let me do a hypnotic test for you."
Xaviera's heart raced for a moment. Albert didn't find any problems, so he proceeded with a hypnotic test to see if she had any psychological issues.
But if she had a psychological problem, how could Caleb Mamet's amnesia be accounted for? Was he also coincidentally having psychological issues?
Albert then performed a hypnotic test on her. After a while, he softly called out, "Xaviera, wake up ..."
Xaviera opened her eyes and glanced at her watch. Only an hour had gone by, but she found it incredibly long.