It’s about to get very chilly in Storybrooke.

When Once Upon a Time returns for its fourth season, Frozen’s Elsa will make her way into town after spilling out of an urn that was locked in Rumpelstiltskin’s vault in the season finale. Suffice it to say, she will not take too kindly to strangers and will quickly lose control of her powers, sending Storybrooke into the next ice age. With that being said, EW created a Frozen-themed drinking game to make watching the show’s return even more fun.

Disclaimer: Yes, we know Frozen is for youngsters. They can chug apple juice, while those old enough should responsibly imbibe in a frosty beverage.

Drink one sip when…

Elsa looks at her hands, terrified at their awesome power.

Someone says it’s cold, chilly, freezing or frozen.

Elsa makes it snow.

Kristoff talks to his reindeer, Sven.

Elsa is misunderstood.

Each of Hans’ 12 brothers first appear on screen.

Elsa says she’s the queen.

Anna is clumsy or awkward.

Drink two sips when…

A non-Frozen character uses a Frozen lyric as a line of dialogue.

Anyone suggests building a snowman.

An Easter egg from a different Disney movie appears.

Sven steals the show.

Anna suggests riding their bikes in the hall.

You think about how much cooler it would be if Kristen Bell and Idina Menzel were playing these roles.

A troll appears.

Anna talks about her wedding to Kristoff.

Someone mentions Kristoff’s new haircut.

Finish your drink when…

A snow monster appears.

Elsa tells someone to “let it go.”

Anyone breaks into song.

We meet the real villain, the Snow Queen.

Someone makes an Adele Dazeem joke.

Happy drinking!

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Once Upon a Time returns Sunday at 8 p.m. ET on ABC.