Ugh. I just discovered this story today. And you know, I'm not one to get addicted to stories straight away but goddamn this story is good. It's so original as well! It's pen pals ffs! I think I have a couple of fair ideas what Anthony's secret/what he's hiding is! Could even be both ideas! But I won't say anything in case someone else reads them and it spoils it for them :P Really good story. I can't wait to read the next chapter.
I've got a story myself if you'd like to read it :)