• It might be a YA sci-fi book.

  • The teens had metal letters/numbers embedded in their heads and might be gang members.

  • There might be a prison on the moon.

  • I know it was published before 1987. I read it at the Morley Public Library in Painesville, Ohio in 1986. It was written in English.

  • This question is very terse and could be vastly improved by going through the checklists here and editing in any relevant info you can think to add.
    – Valorum
    Oct 13, 2020 at 5:10
  • Can you contact the library and ask them what books you got out in 1986? The library is still there and may well still have your records.
    – Valorum
    Oct 13, 2020 at 5:27

1 Answer 1


Possible 'Exiles of Colsec' and sequels by Douglas Hill. Two of the protagonists (Jeko and Rontal) are gang members with a metal 'S' on the forehead and their initials raised scars on their heads.

In the last novel, they escape from a prison and fight a battle within an asteroid mine.

  • This looks like a good possibility! I'm going to try to find it and figure it out thank you so much! Oct 13, 2020 at 16:18
  • 1
    The'Exiles of Colsec' and sequels by Douglas Hill IS the correct answer although I remembered much of this book wrong. Regardless, THANK YOU VERY MUCH! Jun 23 at 11:00

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