Part of their problem was Percy. He fought like a demon, whirling through the defender's ranks in a completely unorthodox style, rolling under their feet, slashing with his sword instead of stabbing like a Roman would, whacking campers with the flat of his blade, and generally causing mass panic.

— Rick Riordan

[Iris] squeezed his hand. 'Don't lose hope, Frank. Rainbows always stand for hope.

— Rick Riordan

According to Festus, our flying table, Buford, made it back safely while we were in Charleston, so those eagles didn't get him. Unfortunately, he lost the laundry bag with your pants.'Dang it!' Frank Barked, which Leo figured was probably severe profanity for him.No doubt Frank would've cursed some more -busting out the golly gees and the gosh darns- but Percy interrupted by doubling over and groaning.'Did the world just turn upside down?' he asked.Jason pressed his hands to his head. 'Yeah, and it's spinning. Everything is yellow. Is it supposed to be yellow?

— Rick Riordan

What are these guys?' He whispered'Canadians,' Percy said. Frank leaned away from him. 'Excuse me?'Uh, no offense,' Percy said. 'That's what Annabeth called them when I fought them before. She said they live in the north, in Canada.'Yeah, well,' Frank grumbled, 'we're in Canada. I'm Canadian. But I've never seen those things before.

— Rick Riordan

About five meters ahead, Nico was swinging his black sword with one hand, holding the scepter of Diocletian aloft with the other. He kept shouting orders at the legionnaires, but they paid him no atte.

— Rick Riordan

Frank, how did you do that?' Jason yelled.Frank's head swam with pain. He forced himself not to pass out. 'I'm the ranking Roman officer,' he said. 'They- uh, they don't recognize you. Sorry.'Jason grimaced, but he didn't look particularly surprised. 'How can we help?

— Rick Riordan

Frank couldn't breathe underwater.But where was he?Percy turned in a full circle. Nothing. Then he glanced up. Hovering above him was a giant goldfish. Frank had turned -clothes, backpack, and all- into a koi the size of a teen-aged boy.'dude.' Percy sent his thoughts through the water, the way he spoke to other sea creatures. 'A goldfish?'Frank's voice came back to him: 'I freaked. We were talking about goldfish, so it was on my mind. Sue me.

— Rick Riordan

Nico drank from the chalice, then offered it to Jason. 'You asked me about trust, and taking a risk? Well, here you go, son of Jupiter. How much do you trust me?'Frank wasn't sure what Nico was talking about, but Jason didn't hesitate. He took the cup and drank.

— Rick Riordan

Fair... You'd be amazed how often I hear that word, Frank Zhang,and how meaningless it is. Is it fair your life will burn so short and bright? Was it fair when I guided your mother to the Underworld? No, not fair. And yet it was her time. There is no fairness in Death. If you free me, I will do my duty.

— Rick Riordan

Tyson, Frank is a descendant of Poseidon.'Brother!' Tyson crushed Frank in a hug.Percy stifled a laugh. 'Actually he's more like a great-great-...Oh, never mind. Yeah, he's your brother.'Thanks.' Frank mumbled through a mouthful of flannel.

— Rick Riordan