After a new enemy comes forth, Percy, the seven, plus Thalia and nico, must gain new allies to defeat him

What would happen if the all of the Gods' and Goddesses' half blood children were reaped into an event like the Hunger Games to prove the strength and their worthiness to their parents? Who would be reaped? Who would survive? What challenges will be unleashed? 18 Tributes. Only one can live. May the Gods be ever in your favor.