Warning This Section Does Contain Spoilers
This block message uses the seal on Aaron's letters that is on the bottom of every letter he sends. We take this seal and make a 5x5 grid over the top of the seal that matches the blocks sent to us. Using this as our guide where the top left block on our 5x5 grid is the letter A and going across the row is A, B, C, D, E then the next row contains the letters F, G, H, I, J. The third row of the grid contains the letters K, L, M, N, O. The fourth row in the grid contains the letters P, Q, R, S, T. The last row of the grid contains the remaining letters of U, V, W, X, Y. There is no Z in this cypher. Now we match the blocks sent to us to those in the grid. We will end up with a message that spells:
My choice is my own. It was the wolf who ate the aging gods. Can you go find the scraps I left over?