I do NOT own Castle.

Warning: Hallow has never been to Hawaii, nor does she have any clue at all what Hawaii is actually like. The place described here is probably nothing like the actual place, it's a fantasy placed dreamed up by a fangirl with an overactive imagination that was getting way too much snow and really wished she could teleport to this place I have named Hallow's Fantasy Hawaii.

"So, what do we need?" Alexis asked as she and her father walked into the grocery store, and grabbed a cart, before heading towards the aisle closest to them.

"Well the beach house was stocked with the basics when we arrived, so now I guess we just need the other essentials."

"Like whipped cream?"

"You know me so well."

They strolled down aisle after aisle, picking up the 'essentials', until Castle happened to look up from the can he was reading, and caught a glimpse of wavy brown hair turning at the end of the aisle that quickly went out of sight.

He, unashamedly, admits to spending a large amount of time memorizing every tiny detail about his detective friend, and he was pretty sure that was her hair he just saw.

Had he been alone, he probably would have chased after the person, but Alexis was there with him and she probably already thought he was mentally unstable enough, he didn't need to prove it to her by chasing after a person with a hair style that was nearly exactly like Beckett's.

They continued shopping and eventually Alexis wondered off to search for a snack she wanted, leaving him to shop by himself for a little while. And just his luck, he turned the corner and headed into an aisle, coming to a complete halt when he saw Beckett reaching to get a box of mashed potatoes off the top shelf.

He wasn't sure why, but he quickly backpedaled away from the aisle, nearly running into Alexis who had found the snack she had wanted.

"Dad?"

"It's Beckett! In that aisle."

"Dad..." She was seriously starting to wonder about him, but decided to humor him and stuck her head around the corner to peek into the aisle, expecting to find nothing.

And she was right.

"There is no one there."

"What?" He moved so he could look into the aisle too, finding that Alexis was right, he really was seeing things.

"I could have sworn..."

The father daughter team was too busy looking down the aisle for the mysteriously disappearing Beckett to notice someone coming up behind them.

Just because she could, and she couldn't pass up a prime opportunity like this, Beckett walked forward and leaned so she was right next to Castle's ear before saying his name rather loudly, causing him to squeal and jump away from her.

"Whoa, now we are both seeing the same illusion... Must be the Hawaii heat." Alexis said, blinking rapidly as if that would make the image disappear.

"Well since you think I'm just an illusion, I'll just leave you guys alone..." Beckett made to turn away but Castle's arm shot out and grabbed hers at a blinding speed.

"Wait!"

"What?"

They were starting to get some stares from the other people in the store and Castle realized that no, she wasn't a figment of his imagination.

"Beckett? So that was you earlier! What are you doing here? And why aren't you as surprised to see us as we are to see you?"

"Finally using up some vacation days, and I've been here for a few days already. You've got the locals all stirred up with your book tour and they've been talking about you non-stop, you'd have to be deaf and blind not to know you were here." Which wasn't a lie, she just left out the part that she knew way before she even set foot here.

"You should come over for dinner then, shouldn't she dad?" Alexis said, throwing a knowing look at Beckett, having a pretty good idea that there was something Beckett wasn't telling them.

"Yeah! Totally! I don't know what we are having yet, but you should."

"Thanks, but I can't."

"Aww, come on detective."

"No really, I can't." Beckett said with a smile. "That would leave Ryan, Jenny, Esposito, and Lanie to fend for themselves, and that would make me a bad hostess."

"They are here too? Awesome! This book tour isn't going to be as boring as I thought!"

Little did he know that at that exact moment, a certain person, who may or may not be named Lanie, was plotting to make sure that this vacation was anything but boring for the detective and writer.