Trying to solve this riddle.

Fmzemzjgl [ ] 3 5 8 13 21

I'm trying to see if the letters unscramble. The numbers are Fibonacci. The blank would have the number two, if I am reading it right.

M e z g (If you take out every second letter)

F z m j l (Remaining Letters)

It's Hobgoblin.

Because the secret number is 2, you use the second letter after each letter in that group.

F > G > H
M > N > O
Z > A > B
E > F > G
. . . so on.

Thank you!