In the meantime, on the chat.
S: Hello, how are you?
L: Fine, dad bought a new P.C. and I am trying it.
S: Let's meet tomorrow.
L: Like a date?
S: Yes.
L: Do you know the restaurant near my high-school?
S: Yes.
L: I’ll be there tomorrow at 6pm.
S: Ok, see you there.
L: Dad is home from work. I have to go.
S: Take care. Bye!
The next day before 6 pm. Syrius is heading to meet Lena and notices he's being watched. Looking around, he sees a car parked near the forest. Sitting in it, a man with binoculars. He figures out that the man is a detective and decides to kill him. He hides the body in the forest and goes to meet Lena.
At the restaurant:
L: There is a black spot on your shirt. Are you hurt? Something happened.
S: No, nothing, don't worry. It's something old.
L: Ok then. (She thinks: something strange is happening here. I don't trust him. I have to search deeper...)
Once the date finishes, Lena follows Syrius Black to his home. Lena observes him for a time and does not see anything strange. She goes home. Once home, she goes to her father's office to search information about Syrius Black. But what she doesn't know is that her father is coming home. Lena is astonished when she sees her father come in:
B: What are you doing Lena? (inquires Bob)
Lena is surprised.
B: I've told you a million times not to enter my office.
L: I know but my PC doesn't work, so I am using yours.
B: Okay (Bob moves closer)
L: I'm finished, so you can use your office now.
B: Thanks.
Lena leaves the office and goes to her room without erasing the archive. Bob wonders why the official FBI website is open. He clicks on, to find out. He sees that she has been loking for information about Syrius Black.