Trinity Willilams

“Grover and Nico came back from their walk, and Grover helped me fix up my wounded arm.
"It's green!" Nico said with delight.”
― Rick Riordan, The Titan’s Curse

“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 attention.

Of course not, Frank thought. He's Greek.

[...]

Jason's face was already beaded with sweat. He kept shouting in Latin: "Form ranks!" But the dead legionnaires wouldn't listen to him, either.

[...]

"Make way!" Frank shouted. To his surprise, the dead legionnaires parted for him. The closest ones turned and stared at him with blank eyes, as if waiting for further orders.

"Oh, great..." Frank mumbled.”
― Rick Riordan, The House of Hades

“Who wants us?" Bianca demanded. "Because if you think you'll get a ransom, you're wrong. We don't have any family. Nico and I—" Her voice broke a little. "We've got no one but each other.”
― Rick Riordan, The Titan’s Curse

“Hazel frowned. "Why that one?"

"You don't see the ghost?" Frank asked.

"Ghost?" Nico asked.

Okay... if Frank was seeing a ghost that the Underworld kids couldn't see, something was definitely wrong.”
― Rick Riordan, The House of Hades