"The Light of Western Stars" by Zane Grey (again)

Yup, this is now officially a favorite western novel for me.
Now, the funny thing is, the first time I read this book, I got really mad at the ending because I seem to have missed one very key sentence toward the end.  (SPOILERS in the rest of this paragraph only.)  And I still think that a showdown between Gene Stewart and Don Carlos is called for, and I'm mad that we didn't get one.  BUT.  Grey does tell us that Don Carlos got captured and thrown in jail.  He's not left on the loose, waiting to...