Nice dinner

"Oh! You have already met. Xavier, this is my friend Micheal, Micheal Parker, he is a senior, a graduate student in Alchemy. Micheal, this is my younger brother, Xavier, he is in his last year of preparatory school." Zane looked at the two people who were not standing far from each other and headed inside the study room to the small hosting area, he took out a basket filled with dishes and began to lay the table.

Why did they not follow him in?

Should he warn him, or should he not warn him? His brother was so smart while his friend was so dull, wouldn't an ordinary person be filled with pity when they hear that he was kidnapped or ask questions? Why would he be staring at him like this? Not interesting at all.