The moment the man and his sister were out of earshot, Conan announced that he will go to the restroom. Ai watched him disappear right at the corner, knowing full well what the shrunken detective was up to. Conan rounded the corner and traced the path they had taken on the way to the café. He, more or less, memorized the area after Riichi passed him a map as they looked for a place to eat and rest. He ducked past the trees and away from the crowd as he searched for any sign of Mr. Ciel or Riichi. He spotted them crossing a wooden bridge toward a more isolated part of the park. He weaved past the trees, carefully taking note of his surroundings and the pair ahead of him. He followed...

...and nothing.

What? Conan looked around. He emerged into a more public part of the park. He recognized the fountain where he and the Shounen Tantei hung out whenever they visit the park. Right now, it was only him. The pair he was following a moment ago seemingly disappeared into thin air. He activated his glasses and looked around for any sign of the man or his sister. Where did they go? Did he miss them taking a turn? The glasses managed to pick up only a scuttling rat behind a trash bin and bird landing back to its nest to rest.

He switched his glasses off and shoved his hands inside his pockets. His mind working in questions bothering him prior stepping foot into the place. What was that about? What are they going to talk about? Without a doubt it's a private matter. But why this far? His eyebrows creased as he surveyed his surroundings. His eyes flickered to the trees and waited for any movement. None. Conan frowned.

"Conan-kun?"

Conan wheeled around sharply. One hand ready on his tranquilizer wristwatch. He was about to click on lifting the target glass when he recognized the person who called her out.

"What are you doing here?" Riichi asked.

Conan blinked once, twice, and looked at the trees where he came from before confirming that the person in front of him was indeed his sister. She was carrying a plastic bag on hand and a small, brown box on the other.

"Are you okay?" Riichi frowned in concern. "You looked like as if you saw a ghost."

Close. Conan thought. Probably. He set aside the thought and took in a sheepish grin. "I was looking for the toilet." He answered. "I got lost."

She raised an eyebrow. "That far?"

Shimatta! Conan panicked. For some reason, he finds it hard to think quickly under her stare. He fidgeted, trying hard to look embarrassed and scared rather than panicked.

"I...I didn't know the place." He stammered. "I thought...maybe..." He looked to her and tried his best teary-eyed expression.

"Are you mad, Riichi-nee-chan?"

Riichi looked a bit taken a back. "Of course not! I'm just..." She sighed, collecting herself. "Just worried. What would we do if something were to happen to you, Conan-kun?"

Conan looked down. "I'm sorry..." He sniffed.

Riichi kneeled down and pulled out a handkerchief to wipe his incoming tears.

"Don't cry. I'm not mad." She assured him. "Just don't wander off by yourself again, okay?"

He nodded and sniffed a bit before smiling. Riichi ruffled his hair before standing up.

"Let's go back. The eel's not going wait for Genta." She said jokingly as she slipped the plastic bag to her other arm and took his hand.

Conan recognized the smell, but his attention shifted to the inconspicuous box tucked safely at her arm.

"Riichi-nee-san," He called as they retraced their steps back to the café. "What's with the box?"

"Oh, this?" She inclined her head to the box. "It's from a friend of mine overseas. They asked Mr. Ciel to give it to me before he flew here in Japan."

Conan continued his investigation. "What's inside?"

"It's a memento." She answered quietly. Her eyes have a faraway look from them. "From a friend who was no longer with us."

"Oh..." Conan's shoulders sagged. He wanted to ask what happened but he felt it will not bode well with her. He decided not to press for now. He looked ahead, absentmindedly watching people mill around and the artistic lights still dancing among the trees.

"You shouldn't worry about it." He heard her saying. "You're still a kid. Leave these things to adults, okay?"

He nodded half-heartedly without looking at her. Adults, huh? How frustrating.

By the time they met up with others outside the café, the pastry basket was almost empty. Riichi presented a 'secret' eel dish to Genta who excitedly wolfed the food in seconds. She also bought some candies for the others before they met up with Mr. Ciel by the entrance to say goodbye. He told them that they are welcome to visit again within the duration of the event. He assured that they will be exclusively free of charge. Professor Agasa dropped the three kids home before driving to his house where they parted ways. Conan called Ran through Conan's phone and told her he will be staying the night in the professor's house.

"...Hai, Ran-nee-chan!" Conan chirped on the phone. "Good night!"

The call ended and Conan slipped to the basement where Ai was working with the antidote. The shrunken chemist was among racks of test tubes and beakers filled with different colored chemicals. A pungent odor wafted in the lab. Conan carefully made his way to the girl.

"Is it done yet?" He asked, hands tucked in his pockets.

"Almost." Ai answered without looking at him.

He eyed the chemicals warily. "Are you making a new version?"

"Yes." Ai poured a chemical to a test tube. "You'll be using the new one tomorrow. Who knows? Maybe you'll turn into a frog, instead of Kudou Shinichi."

She looked at him over her shoulder and smirked. "That would be a breakthrough in my research."

Conan crossed his arms and scowled. "Very funny."

"Heh." Ai turned back to her work. "Get some sleep, Kudou-kun. The new antidote will be done by the time you wake up."

"Alright."

Conan walked out of the basement and peered through a window in the living room. The room beside his was lit. The peach curtains swaying gently against the night breeze.

Conan heaved a tired sigh. Another person to lie to.