Jason DiLaurentis confronts Aria about the fire in his aunt Carol's storm cellar on Tuesday's Pretty Little Liars

Pretty Little Liars Sneak Peek! Aria Tells a Shocked Jason About His Newly Discovered Cousin

The DiLaurentis family tree just keeps growing and growing.

In a sneak peek of Tuesday’s new episode of Pretty Little Liars, Aria (Lucy Hale) tells Jason DiLaurentis (Drew Van Acker) about what she and the other Liars discovered in his aunt Carol’s storm cellar, which served as a former hideout for his other aunt Mary Drake and mom Jessica DiLaurentis.

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Jason confronts Aria at her fiancé Ezra’s (Ian Harding) apartment, asking, “There was a fire at my aunt Carol’s the other day, do you know anything about it?”

At first, Aria feigns ignorance, before assuaging Jason’s fears over his sister Alison’s (Sasha Pieterse) safety with another lie.

“Ali asked me not to say anything,” Aria says. “We found some of your mom’s personal things in the cellar …. We found some paperwork that confirmed she was in charge of Mary’s care at Radley. She oversaw Charlotte’s adoption and Mary’s other child’s adoption too.”

Shocked, Jason asks, “What other child?”

Aria has no more information, however, as Mary has disappeared and the lair exploded into roaring flames at A.D.’s hands.

“I’m sure there were more secrets, and I’m guessing my mom was killed because of them,” Jason laments.

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Jason has been ruffling feathers since returning to Rosewood to serve as Alison’s court-ordered caretaker.

First, he sent Mary packing, and then, revealed a little romantic entanglement with Aria that happened during the time jump.