I read this story a few months ago and was trying to find it again, but it seems to have gone missing. Some key plot elements from it were:
- It starts with twin siblings—a brother and sister randomly dying
- they see the light from heaven and eventually go up, but the angels throw them down to hell for some unknown reason
- they land separately in hell
- instead of getting "eaten" they find a group of friends
- The souls have numbers on their head to track how many times they have to die in hell; the siblings have no numbers, causing them to stand out
They journey to a tower, which falls
- angels attack hell as they are searching for the siblings
That's all I could remember now; if you know the story I am thinking of, please let me know! Thanks in advance