This gloved all the way from the other side of the United States to my home for me to repair it. It is not what i would actually call a hole even though you can see one. When I inspected it, it is actually a runner like you get in stockings , and knitting but this is crochet. Most people do not know you can get them in crochet too. But in crochet it is a dropped yo. So when the person who created this many years ago was making the double crochet she actually missed the loop and it was left hanging sort of tight connected by the pressure of the other stitches around it but in time with wear and washing it worked its way free and started to run.
Below is the finished repair the first photo I am pointing at it in the next see if you can see it.