What hides between Shadow and Light?

[Tommy Gun]

First part solved.

Fibonnacci explanation.
It basically is a sequence of number that plus the last two number of the previous question. E.g

1+2=3
because 2 and 3 are the last numbers of the equation, they are elevated into the next question in the sequence:
2+3=5 Then..
3+5=8 etc.

Note: each number in this sequence is only used TWICE.

first fibonacci numbers are:

1 + 1 = 2
1 + 2 = 3
2 + 3 = 5
3 + 5 = 8
5 + 8 = 13
8 + 13 = 21
13 + 21 = 34
21 + 34 = 55
34 + 55 = 89
55 + 89 = 144
89 + 144 = 233
144 + 233 = 377
233 + 377 = 610
377 + 610 = 987
610 + 987 = 1597
987 + 1597 = 2584
and so forth.

ok:, so thats Fibonacci done.

Ok, now, how did we decpiher lux tenebras last time?
It looks similar to the lat text,,, except without the numbers solved, its useless gibberish, we need those numbers to decpiher the text, using a keyword or perhaps a caesar shift.

Sigh... ill come back to it later, in the meantime, i leave you with the numbers if they were changed to letters:
C,i,g,d,h,i,e,g,k,f,f,m,g,h,f,i,f,k,h,m.