Celeste had been flooed by her father who relayed the message of the meeting to her. After he'd finally accepted her decision to be apart of the Order, he began keeping her updated constantly. Whenever something went or went down, Celeste knew she'd hear about it from her father.
"Sorry I'm a little tardy," she said after she made her way through the protections with father, Oliver, and mother, Katie. "Dad wanted us to meet up before coming."
She slid down into an empty chair Ginny was offering her and listened into the conversations.