Kim Kardashian was scrolling back through her phone and found a recent selfie that made her jump.

The SKIMS founder, 42, looks absolutely gorgeous in the photo with no makeup on and her hair pulled up into a top knot.

She wore a bubblegum pink tank dress – that was the same color as the bikini she wore while bicycling on vacation this week – as she snapped the selfie in the mirror.

But visible behind her was a strange, ghostly shadow in the window.

‘Soooo I took this pic last week when I was alone and now going through my phone I am freaking out noticing a woman in the window,’ she captioned the Instagram post.

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Fans jumped into the comments section to offer their theories on what the apparition was.

‘That’s Kourtney. She wants revenge for her wedding,’ one fan wrote.

Another quipped: ‘That’s Kourtney trying to get ahead of your next move.’

‘That’s Kourtney living her dolce vita lifestyle,’ said another fan.

‘American horror story: the Kardashians,’ one fan joked.

Several others brought up an inside joke from Keeping Up With The Kardashians’ 10th season when Scott Disick, 40, would call Kris Jenner, 67, and pretend to be their family friend Todd Kraines.

‘ITS TODD KRAINES,’ one wrote, while another chimed in, ‘That’s actually Todd..Kraines…’

Fans continued to bring the comedy with their comments with one adding: ‘She just wants to talk to you about your car’s extended warranty.’

Caption: ‘Soooo I took this pic last week when I was alone and now going through my phone I am freaking out noticing a woman in the window,’ she captioned the Instagram post

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Someone else offered the opinion that the shadow is ‘Your ancestor the one that sold her souls to the 4 witches so that you can have fame and fortune. She’s probably just visiting you.’

The startling post comes days after Kim was seen partying with retired quarterback Tom Brady, 45, at Michael Rubin‘s annual 4th of July party in the Hamptons, prompting rumors of a budding romance.

But reps for the Super Bowl winner insisted the two are ‘just friends.’

‘Tom and Kim have been in touch because Kim is looking to buy property where Tom has a vacation home,’ his reps said in a statement to ET in May. ‘Kim and Tom have friends and business partners in common, but they are not dating.’