It was almost nightfall and Jack, by his dad's request, was cleaning out the attic.

"Another one coming down to ya!" Jack yelled and dropped down a box to Flynn.

Flynn was to help Jack, by throwing away all the boxes of unneeded things. He caught the box Jack dropped with an 'oof' and sat it down. "How many more to go?"

Jack wiped the sweat off his forehead and picked up another box. "Last one." When he said that, all the papers fell out from the bottom. Jack scoffed. "Just go ahead and take that one out! All the crap in this one just fell out."

"Will do!" Flynn picked up the box and headed downstairs.

Jack flipped the box, using the part that was the top as the bottom, and started to put all the junk back into said box. Then, Jack quirked a brow at the final piece of trash – he was faced with the back of a picture. Knowing how sentimental his dad was, Jack picked up the picture, thinking it was put there by mistake. He smiled, turned the picture around, and he couldn't believe what he saw. "It can't be." Jack ran a finger over his mother's face on the picture, but what he saw in her arms is what shocked him to his core.

Flynn came into the house to see Jack storming down the stairs. "What's wrong?" Flynn asked worriedly, but Jack went past him as if he wasn't there.

"Dad!" Jack yelled and went straight to Drac, who was mopping the floor.

Drac rolled his eyes at his son. "Jack, I just mop-"

Jack put the picture in Drac's face. "What's the meaning of this!?"

"Jackson…" Drac reached for the picture.

"No!" Jack pulled the picture away before his dad could take it. "I thought mom died giving birth to Mavis!"

Flynn stepped into the kitchen. "What?"

Jack quickly turned to Flynn. "Look!" He showed the picture. "That's you in mom's arms!"

"How?" Flynn looked to Jack.

"That's what I want to know." Jack turned and glared at Drac.

Drac sighed and sat on a kitchen chair. "Listen – I…me and everyone, were just trying to protect you two and your friends from the truth."

"Why?" Jack asked and stepped closer to Drac.

"Because", Drac exhaled sharply through his nose, "your mother was killed by Drago the night he attacked our home."

Jack looked down, he breathed sporadically, and his eyes moved about as if looking for answers on the floor.

Flynn stood next to Jack. "What else did you lie about?"

"That's all I lied about." Drac stood, putting his hand over his heart. "Everything else I told you boys was true. Mavis died at birth, Jack continuously cried because he missed and needed Mavis, and then he finally stopped when we put you two next to each other." He walked towards his sons. "Please, forgive me."

That was the only thing Jack heard.

Jack looked up to Drac with rage in his eyes. "No." He pushed his father and stormed out.

Drac slipped on the wet floor and fell on his back.

"Jack!" Flynn yelled and went to help Drac up.

Jack was in his room putting everything he needed into his suitcase, all the while mumbling about his dad…

When Flynn heard Jack come down the stairs, he stormed towards the angered teen. "Jack!"

Jack stood in front of the door and pointed his wand at Flynn.

Flynn gasped and backed away.

"Jackson." Drac rushed up behind Flynn.

"I'm leaving." Jack stated, opened the door, and put his suitcase outside. "Don't follow me." He said to Flynn as he stepped outside.

Drac put his hands on Flynn's shoulders. "He won't."

"What?" Flynn turned his head to Drac.

Jack slammed the door shut and stormed off…

Jack Frost and the Prisoner of Azkaban