Yes, it most likely would not handle that. We can see from the first line that
when you change the combo box (onchange), it changes your browser's tab
(window.location) to a new link, consisting of

/online-reading/comicsonline/runaways/runaway230/ + this.value

where this.value is the value you've chosen. So if you've chosen 11, it would
change your browser to

/online-reading/comicsonline/runaways/runaway230/11


HTTrack will not choose each value in the dropdown and record the result, then
hit the back button and choose a different value - you'd need a much more
complex solution for that. The good news is that there's a very predictable
pattern to the URLs, so you can create a new text file named URLs.txt and put
in:

website.com/online-reading/comicsonline/runaways/runaway230/11
website.com/online-reading/comicsonline/runaways/runaway230/12
website.com/online-reading/comicsonline/runaways/runaway230/13

..etc., and then pass that text file in to HTTrack. That will allow it to grab
all of the files. It's manual, but it would work.