User blog comment:Hyperborean/What to expect/@comment-99.239.69.247-20120508005949/@comment-3146930-20120508011350

However Nico and Thalia are children of gods that are already represented (Hazel and Jason respectively). Even if the gods were in different forms at the time (Greek and Roman also respectively), that would still mean that there would be two children of the same god, which is extremely doubtful. So far the only god of Olympian Week not represented is Athena/Minerva, so the last of the seven would be her child, but we don't know who