This page contains spoilers about the Heartbound ARG. If you want to solve the puzzle yourself, avoid reading this article.
This puzzle is also in the source. We are given a strange matrix of numbers...
<!-- You pitiful creature of flesh... -->
<!-- Doing the bidding of an old man... -->
<div class="What is it you want then...?">
<!-- +4 | +2 | +0 | -2 | -4 -->
<!-- 18 | 07 | 05 | 02 | 16 -->
<!-- 19 | 21 | 01 | 20 | 01 -->
<!-- XX | 10 | 09 | 11 | XX -->
</div>
Number Grid[]
The puzzle:
+4 | +2 | +0 | -2 | -4 18 | 07 | 05 | 02 | 16 19 | 21 | 01 | 20 | 01 XX | 10 | 09 | 11 | XX
This puzzle may seem confusing but it's simple. Each column has been shifted by the numbers given above. To decrypt it, reverse the math:
14 | 05 | 05 | 04 | 20 15 | 19 | 01 | 22 | 05 XX | 08 | 09 | 13 | XX
Then we use a standard (A:1, B:2, ...) decryption to get the plain text:
N | E | E | D | T O | S | A | V | E X | H | I | M | X
And that's our answer, add "NeedToSaveHim" to the URL, and you'll get the Who Will Benefit From This page.