Messiah and Children are sometimes published in one volume since Messiah's so short, so you may as well read both if you're going past the first book. And if yo

Messiah and Children are sometimes published in one volume since Messiah's so short, so you may as well read both if you're going past the first book. And if you've done that you may as well finish the arc with God Emperor. Reading past that is, truly, not worth it. Story's over, stop reading.