Riddle? Anyone good enough to crack it.?

Question

Well there was a riddle on my forum and I am finding it quite hard to crack, anyone game>

There are two halves.

The sum of the halves is 26.

The first half begins with A.

The last half ends with N.

Aligning the characters cracks the code.

R zn mlg gsv alnyrv.

Answer 1

the alphebet????

Answer 2

I was thinking A= 11 and N= 15 but then I got lost from there

Answer 3

I agree with the first answer.

The Alphabet?

Answer 4

the a.b.c    

Answer 5

The solution is "I Am not the zombie."