Regina (Lana Parrilla) confronts Lily (Agnes Bruckner) about working together on the next episode of ABC's Once Upon a Time.

Will Regina Find Her 'Happy Ending' In The 'Once Upon a Time' Finale?

ABC has released a new sneak peek clip from the next episode of Once Upon a Time, which is titled Mother. The clip features Regina and Lily sitting outside the pharmacy in Storybrooke.

"You know about Snow and Charming getting you banished, putting Emma's potential for darkness into you," Regina asks Lily.

'Once Upon a Time' Star Previews 'Big Stuff Going Down' For Snow & Charming

"Sent me through the portal in my eggshell, baby Moses in his basket," Lily says. "And unless you have any ideas about giving them what they deserve?"

"Let's not worry about what they deserve," Regina says. "Let's work on what we deserve."

After Lily says that she deserves Snow (Ginnifer Goodwin) and Charming (Josh Dallas) dead, Regina observes that Lily has a lot of darkness in her, darkness that belongs to Emma (Jennifer Morrison).

Regina tells her that this darkness is what she needs, causing Lily to ask her to leave.

Regina then says that she should just "cut to the chase" and literally cuts Lily's hand with a knife. She gets some of Lily's blood and puts it into a vial. When Lily says that Regina is out of her mind, Regina quips, "Welcome to Storybrooke" and disappears in smoke.

Some Once Upon a Time fans are speculating that this might not actually be Regina in the clip, but Rumple (Robert Carlyle) disguised as Regina. Her dialogue in the clip is much more sinister than we are used to from Regina, and the fact that she is so excited about the prospect of dark Emma suggests that this may be Rumple.

Once Upon a Time airs Sundays at 8 p.m. ET/PT on ABC.

Watch the promo for the next episode of Once Upon a Time here:

Tags: Once Upon A Time television ABC