The HBO show gave a major hint to what inquisitive gamers have long theorized about.

Warning: This article contains spoilers fromThe Last of Usseason 1 finale.

Asactor Troy Baker previously told EW, it’s like they enrich each other.

The Last of Us Season 1, Episode 9

Ashley Johnson on ‘The Last of Us’.Liane Hentscher/HBO

Anna is pregnant with baby Ellie and is on the run from an Infected.

Nobody is there, however, and Anna is forced to grapple with the Infected.

She kills her attacker, but she’s been bitten.

The Last of Us Season 1, Episode 9

Marlene (Merle Dandridge) cradles a baby Ellie in the opening to ‘The Last of Us’ season 1 finale.Liane Hentscher/HBO

She frantically severs the cord, but the presumption is that the cordyceps infection was transferred to the infant.

She says the doctors working with the Fireflies believe the cordyceps has been growing inside Ellie since birth.

Another opportunity was an animated short.

Bella Ramsey’s Ellie in ‘The Last of Us’ season 1 finale

Bella Ramsey’s Ellie in ‘The Last of Us’ season 1 finale.Liane Hentscher/HBO

The first is a letter written to Ellie by Anna.

Playing as Ellie in the “Winter” deer-hunting section, gamers can find the note in her backpack.

It’s scrawled on a scrap of notebook paper that is streaked with bloody fingerprints.

The Last of Us game cr: Naughty Dog

A note from Ellie’s mom Anna can be found in ‘The Last of Us’ video game.Naughty Dog

“Ellie, I’m going to share a secret with you,” the letter begins.

“I’m not a big fan of kids and I hate babies.

I’m staring at you and I’m just awestruck.

The Last of Us game

Marlene’s diary in ‘The Last of Us’ game offers more backstory to her relationship with Anna.Naughty Dog

Anna writes that Marlene will look after Ellie.

“There’s no one in the world I trust more than her,” she says.

“When the time comes she’ll tell you all about me.

Don’t give her too much of a hard time.

Try not to be as stubborn as me.”

you’ve got the option to also find a diary Marlene kept about her experiences.

One such find is a voice memo she addresses to Anna.

“I would’ve done anything for her, and at times…

Here’s a chance to save us, all of us.

This is what we were after, whatyouwere after.

They asked me to kill the smuggler.

Maybe he can forgive me.”

“Here, we get to dramatize it,” Druckmann says of working this material into the show.

“It’s this beautiful thing because we get to do it with Merle and Ashley.