Abby

“As his raft skimmed over the water, taking him back to the mortal world, he understood a line from the Prophecy better-an oath to keep with a final breath.
He understood how dangerous oaths could be. But Leo didn't care.
"I'm coming back for you, Calypso," he said to the night wind. "I swear it on the River Styx.”
― Rick Riordan

“[Tyson] looked him over with that massive baby-brown eye. “You are not dead. I like it when you are not dead.”
Ella fluttered to the ground and began preening her feathers. “Ella found a dog,” she announced. “A large dog. And a Cyclops.” Was she blushing?
Before Percy could decide, his black mastiff pounced on him, knocking Percy to the ground and barking so loudly that even Arion backed up. “Hey, Mrs. O'Leary,” Percy said. “Yeah, I love you, too, girl. Good dog.”
Hazel squeaked. “You have a hellhound named Mrs. O'Leary?”
“Long story.”
― Rick Riordan, The Son of Neptune

“Tell the sun and stars hello for me.”
― Rick Riordan, The House of Hades

“I wonder how many tears the ocean has swallowed, how much of the ocean is actually made of tears.”
― Anna Banks, Of Triton