Trying To Bust A Liar

Later, Josh went to class with Zoe's robot, Isabelle to monitor Kayla in his class and to record any new lie Kayla made up. Zoe also gave her brother her watch in order to control the robot.
Josh: Isabelle, you have to be really quiet during class.
Isabelle: Why?
Josh: I don't want the teacher to know that you're monitoring my classmate.
Isabelle: Okay.
Kayla walked inside the classroom and sat down in her seat, 3 rows away from Josh. He knew that it is the right time for Isabelle to record every single thing Kayla's doing.
Josh: Alright Isabelle, I think it's time for you to record every single thing Kayla's doing.
Isabelle: But it's clear that she doesn't like me.
Josh: Zoe installed the invisible feature.
Isabelle: Oh yeah.
Josh: I just need to press the invisible button on Zoe's watch. But which one is it?
Isabelle: The sky blue button.
Josh: Oh.
Josh pressed the sky blue button and made Isabelle invisible. Because Josh has powers, he can see where Isabelle is. So he felt the burning sensation behind his eyes as he tried to find Isabelle.
Isabelle: Josh, I'm right here.
Josh: Oh.
Isabelle: So where is this Kayla girl?
Josh: She is three rows behind me.
Isabelle: Okay.
Isabelle invisibly went up to Kayla's desk and secretly turned on her camera feature. Josh watched the footage from his sister's watch and saw that Kayla is taking down notes. Josh zoomed in to what she's writing about and it made him sick.
Josh: Isabelle, what is she planning?
Isabelle: She had already planned to fake all the stuff we exposed about her. The next thing she'll do is manipulate a Year 8 student.
Josh: Year 8? Why Year 8?
Isabelle: I dunno.
Josh: Wait, can she hear you?
Isabelle: No, when I'm in invisible mode only the person wearing the watch could hear me. So that means Kayla really doesn't know that I'm here.
Josh: Oh yeah. Erm... Isabelle? I think she's standing up and facing your direction.
Isabelle: Holy-
Josh: Quick, move to my desk now before she notices I have a robot with me.
Isabelle, still in invisible mode, moved to Josh's desk and entered his bag. He turned off invisible mode, deactivated Isabelle and closed his bag before Kayla notices. But it was too late because she already noticed Josh closing his bag.
Kayla: Josh, what are you doing?
Josh: Nothing.
Kayla: I've never seen you wear a watch before.
Josh: That's because my sister let me borrow her watch.
Kayla: Okay.
Josh: I gotta go.
Josh grabbed his bag and went to the programming room to see Zoe, Hayden, Sofia and Kandace. I returned Zoe's watch to her and took out Isabelle from my bag.
Zoe: So, what did you find?
Josh: I discovered that Kayla might manipulate a Year 8 student.
Sofia: Year 8?
Kandace: Wait what? How?
Josh: I dunno. And she's crossing off all the lies she made up a few months ago to trick all of the students.
Hayden: For real?
Josh: Yeah, Isabelle saw them.
Kandace: Wait, how can Isabelle sneak up to Kayla without her knowing?
Zoe: Isabelle has invisible mode.
Sofia: Cool.
Josh: I kinda felt anxious about this though.
Zoe: We all are anxious.
Sofia: Yeah. Is there any mention of anxiety in her list of lies?
Josh: Yup. 
Hayden: That means she has been lying about having anxiety all along.
Kandace: At least she doesn't know what anxiety really feels like cuz almost every here has anxiety.
Zoe: True.
Josh: Yeah.
Sofia: This is actually how it feels like.
Song: In My Blood by Shawn Mendes
Sofia: #Help me, it's like the walls are caving in #Sometimes I feel like giving up #But I just can't #It isn't in my blood#
Josh: #Laying on the bathroom floor, feeling nothing #I'm overwhelmed and insecure, give me something #I could take to ease my mind slowly #Just have a drink and you'll feel better #Just take her home and you'll feel better #Keep telling me that it gets better #Does it ever?#
Zoe: #Help me, it's like the walls are caving in #Sometimes I feel like giving up #No medicine is strong enough #Someone help me #I'm crawling in my skin #Sometimes I feel like giving up #But I just can't#
All: #It isn't in my blood #It isn't in my blood#
Hayden: #I'm looking through my phone again feeling anxious #Afraid to be alone again, I hate this #I'm trying to find a way to chill, can't breathe, oh#
Zoe: #Is there somebody who could... #Help me, it's like the walls are caving in #Sometimes I feel like giving up #No medicine is strong enough #Someone help me #I'm crawling in my skin #Sometimes I feel like giving up #But I just can't#
All: #It isn't in my blood #It isn't in my blood #I need somebody now #I need somebody now #Someone to help me out #I need somebody now#
Sofia: #Help me, it's like the walls are caving in #Sometimes I feel like giving up #But I just can't#
All: #It isn't in my blood #It isn't in my blood, oh #It isn't in my blood #I need somebody now #It isn't in my blood #I need somebody now#
Zoe: #It isn't in my blood#
Kandace: I have questions. What's the difference between panic attacks and anxiety attacks? Does Kayla know any of them.
Zoe: I study psychology in my free time so I'll explain. Anxiety symptoms vary in intensity, from mild to severe. Panic attacks appear suddenly, while anxiety symptoms become gradually more intense over minutes, hours, or days. Panic attacks usually subside after a few minutes, while anxiety symptoms can prevail for long periods.
Kandace: Oh... Josh, since when does Zoe have a higher IQ than you?
Josh: We actually have the same IQ but I'm dyslexic.
Zoe: Yeah.
Kandace: I don't see why.
Hayden: Explains their powers though.
Zoe: Let's head to lunch and sneak up to Kayla.
Josh, Hayden, Zoe, Kandace and Sofia went down to lunch and sat on their usual table which is close enough to see Kayla. Kayla is eating her food while writing down her plans.
Sofia: What is Kayla doing?
Zoe: Let's see.
Zoe pressed the button on the right side of her glasses which can act like binoculars or screening goggles from sci-fi movies.
Kandace: Woah.
Zoe: I can reprogram my glasses to do this.
Josh: So what is Kayla up to next? After talking to some Year 8 student and manipulating them.
Zoe: Lie that she's lesbian so that she could see guys' nudes.
Sofia: Eww...
Hayden: Me being straight, that's disgusting.
Kandace: Literally. 
Zoe: That could get her expelled if she's exposed.
Josh: We'll expose her once more.
Zoe: Yeah.