Zed began to ponder how neither he nor Katie bore any resemblance to their parents. Despite being twins, there wasn't even a single similarity between them. His thoughts became suspicious, and a lot of questions flashed in his mind. Why had he never noticed this before? What could it mean? The documents he found only fueled his doubts, making him question everything he thought he knew about his family.

Katie, after some hesitation, knocked on her brother's door. "Can I come in?"

Zed opened the door with a sigh, his mind still racing with unanswered questions.

"Look, whatever conflicts we have with each other, I am sorry. Things are different," Katie said, her voice soft but firm.

"How different? What do you mean different?" Zed asked, his curiosity piqued.

"I mean we are adults now and have different views in life. This is just a space I need, but that doesn't mean I want to distance myself from you. After all, we are siblings, and we will always have each other's back no matter what," Katie explained, trying to bridge the gap between them.

Zed nodded slowly, understanding her need for space but still feeling the weight of his newfound suspicions. "I still have schoolwork to complete. Do you mind if you give me that space, too?" he said, his tone more resigned than before.

Katie stood and rushed to the door. Before closing it, she turned back and uttered, "Good night, Zeddy."

Zed watched her leave, feeling a mix of relief and frustration. He appreciated her attempt to mend their relationship, but the questions swirling in his mind wouldn't let him rest. He needed answers, and he wasn't sure where to start.

As the night wore on, Zed found himself unable to focus on his schoolwork. The documents he had found haunted him, and he knew he couldn't ignore them.

Meanwhile, Katie lay in her bed, feeling a sense of unease. She couldn't shake the feeling that something was wrong with Zed. His behavior had been off ever since their parents left for Paris, and she wondered if there was more to his mood than just their recent arguments.

The next day, Zed and Katie went about their routines, but the tension between them was still palpable. They exchanged polite words during meals, but the underlying strain was evident. Zed's mind was preoccupied with his investigation, while Katie tried to focus on her studies, all the while keeping an eye on her brother.

As the days passed, Zed's search for answers led him down a path he hadn't anticipated. He uncovered more pieces of the puzzle, each one adding to his growing sense of unease. The secrets he discovered threatened to unravel the very fabric of their family, and he knew he had to confront his parents when they returned.

Katie, sensing Zed's increasing agitation, decided to confront him once more. She knocked on his door, determined to get to the bottom of whatever was troubling him. "Zed, we need to talk," she said, her voice firm.

Zed looked up from his desk, his eyes filled with a mixture of determination and fear. "I think we do," he replied.