This is how Tempest Shadow tells Twilight to turn herself in goes in My Little Pony: Transformers Prime: The Movie.
[Twilight looks at Optimus]
[The device turns on, revealing Tempest Shadow]
Tempest Shadow: [on device] Twilight Sparkle.
Twilight Sparkle: Tempest Shadow.
Tempest Shadow: [on device] You made it this far.
Twilight Sparkle: Yes.
Tempest Shadow: [on device] I want to make a deal with you.
Twilight Sparkle: Really?
Tempest Shadow: [on device] Yes.
Twilight Sparkle: What do you want, Tempest?
Tempest Shadow: [on device] Here's what I'm thinking. If you turn yourself in, I promise I won't hurt your friends. If you don't, all bets are off.
Twilight Sparkle: [gasps]
Tempest Shadow: [on device] You have two hours to make up your mind.
[Twilight looks down]
[Optimus looks at her]
Twilight Sparkle: What do you think I should do, Optimus?
Optimus Prime: Well, I would choose wisely and do as she says if I were you.
Twilight Sparkle: What?!
Optimus Prime: It's the only way.
Twilight Sparkle: But...
Optimus Prime: [sternly] Twilight.
Twilight Sparkle: [sighs] Fine. I'll do it.
Optimus Prime: It is time we part ways.
[Optimus kneels down and Twilight hugs his leg]
Twilight Sparkle: Good luck.
Optimus Prime: Good luck to you too.
Twilight Sparkle: Just be careful.
Optimus Prime: You should too.
[They smile at each other for a moment before Twilight turns and makes her way to Tempest's lair]