User blog comment:SayuriDarling/The Mark of Athena Official Discussion/@comment-86.28.255.73-20121016215252/@comment-86.28.255.73-20121017220049

if they close the tartarus side but NOT the mortal side by the end of the fourth book- what will that mean? no more monsters can come back but the ones that are never die? or the other way round?.