W.I.T.C.H., Season 2 (2006)

Zacharius:
Oh, goodness! My girlfriend's beast, isn't she?

Yan Lin, Hay Lin:
Girlfriend?!

[Yan Lin hugs Zacharius]

Yan Lin:
Mmmm, like the sound of that! The girlfriend part, [A swishing sound is heard] not so much the beast.

[Zacharius is frozen]

Yan Lin:
[She waves her hand in front of his face] Zacharius?

[She looks over and Hay Lin and Eric are frozen]

Nerissa:
You won't like the sound of this.

[She walks over to Yan Lin]

Nerissa:
You are not the real Yan Lin. You are... an altermere.

[Yan Lin wakes up in her bedroom]

Yan Lin:
Oh! Just a dream

Nerissa:
[voice] A dream come true.

[Nerissa walks out from the shadows]

Nerissa:
You are an altermere. A living duplicate. Created on Mount Thanos.

[Flashback, all the Old Guardians are there]

Nerissa:
You seem to be incorruptible. And I am running out of time. So, let's see if I can't find a suitable replacement. [She uses the Seal to unleash lightning bolts, which trap Yan Lin within it]

Nerissa:
We'll just hide you away. And create someone more... [She creates an altermere in the cell] accommodating.

Hay Lin:
Nerissa!

Nerissa:
[voiceover] The Guardians [The scene plays out as per the previous episode - she fires a lightning bolt at the Guardians who fly out of the way] rescued you as I planned. Only you aren't you.

[Flashback ends]

Yan Lin:
What do you want?

Nerissa:
Nothing, now. [She walks back into the shadows] Enjoy her life. Have a moo shoo. But reveal who you are to anyone and I will absorb you back into the Seal... and oblivion!