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: Charlotte confessed she hit Alison with a rock the night she vanished, mistakenly thinking Ali was Bethany Young .
: Mona confesses that she was the one who hit Bethany, thinking it was Alison . [S6E10] Game Over, Charles
is the mid-season finale of Pretty Little Liars Season 6 (Episode 10), which aired on August 11, 2015. This milestone episode finally revealed the identity of "Big A" and provided the backstory for the series' long-running mystery. Major Reveals : Charlotte confessed she hit Alison with a
: Both mysterious figures are revealed to be Sara Harvey , who was acting as Charlotte’s accomplice. which aired on August 11
: CeCe Drake is revealed to be Charlotte DiLaurentis , who was born as Charles DiLaurentis .