Seven Days to Save The World is book in the Tales of Celestia series by Patty Jansen
Here is a sample:
“Who are you? How come you know me?” He wanted to ask What are you? but he thought that might be rude.
“I’m your birth nymph.”
“Aurelius, please explain to the boy…”
Father brought his hand on the table with a crash. “I won’t go back, and that’s the end of it.”
Florian grasped his chance. “Back where?”
Father didn’t meet his eyes.
After a long and uncomfortable silence, Meva said, “To the realm of Celestia.” She straightened her back, her eyes burning. “I can’t believe you haven’t told the boy—“
Father hit the table again so hard that the cups danced over the surface. “I’ve told you! We’re finished with Celestia.”
“You’re not, and I won’t let you off that easily. You are still their legal king.”
Florian glanced from one to the other, his cheeks burning. Did she really say his father was a king of some place?
“They don’t want me. They never wanted me. I was never brave or heroic enough. They adored Daisy, oh, they did, so they can have Daisy.”
“Daisy? My mother is called Daisy?”
His father glared at him as if about to tell him to keep his mouth shut, but Meva smiled. “The very one. Queen Daisy of Celestia.” Then she cast his father a sharp look. “You really haven’t told him anything, have you?”
“There is nothing to tell. He’s growing up like a normal boy.”