“In my dreams, I was back in Hades’ garden. The Lord of the Dead paced up and down, holding his ears while Nico followed him, waving his arms. ‘You have to!’ Nico insisted. Demeter and Persephone sat behind them at the breakfast table. Both of the goddesses looked bored. Demeter poured shredded wheat into four huge bowls. Persephone was magically changing the flower arrangement on the table, turning the blossoms from red to yellow to polka-dotted. ‘I don’t have to do anything!’ Hades’ eyes blazed. ‘I’m a god!’ ‘Father,’ Nico said, ‘if Olympus falls, your own palace’s safety doesn’t matter. You’ll fade, too.’ ‘I am not an Olympian!’ he growled. ‘My family has made that quite clear.’ ‘You are,’ Nico said. ‘Whether you like it or not.’ ‘You saw what they did to your mother,’ Hades said. ‘Zeus killed her. And you would have me help them? They deserve what they get!”
―
Rick Riordan,
The Last Olympian