The Cross
“Your grandmother gave it to you,” the OP’s five-year-old niece told the OP. It wasn’t a question; it was a statement of fact. How the kid knew the OP’s late grandmother gifted her a necklace is beyond human comprehension, yet here we are.
After asking family members, the OP learned that nobody had taught the niece about how their grandmother gave them the necklace. When asked about it, the child simply replied that she always knew. How couldn’t she when the very woman who gifted the necklace in the first place was a frequent visitor in the child’s bedroom at night?