A Sacrifice Made

Guess who managed to butcher a demonic triangle?

Is it just me, or was Bill's death just kind of...sad? I mean, he seemed so weak and helpless ;-;

Anyways, there's a little thing hidden in the image, which was simply hidden.

You have one week (seven days) to solve it!
Put your answer in the comments and see if yours happens to be correct~!

The answer was: 1-24-15-12-15-20-12!
13-25 20-9-13-5 8-1-19 3-15-13-5 20-15 2-21-18-14!
9 9-14-22-15-11-5 20-8-5 1-14-3-9-5-14-20 16-15-23-5-18 20-8-1-20 9 13-1-25 18-5-20-21-18-14!
Which translates to: A-X-O-L-O-T-L
My time has come to burn!
I invoke the ancient power that I may return!