I Need Help With A Riddle

the 4th prime the 26th letter the sum of the first 2 primes
1.4.23.5

1.5.19.4

the 2nd prime put to the power of the 1st prime

1.6.19.4

That is a book code. To find the book, solve the below riddle.

I am but a loyal subject, but they say I shall be king.
He is the king, and thus I shall stain my hands with blood.
I wear a mask, alas my name is known to all.
Find me where there is no fear.