: It also deepens the mystery surrounding Toby’s mother, Marion Cavanaugh, suggesting that the "accidents" at Radley were planned or covered up long in advance.
In the Pretty Little Liars episode "The Remains of the 'A'" (Season 3, Episode 06), the "interesting paper" most likely refers to the found by Hanna and Spencer . Pretty_little_liars_3x06
: While searching through a box of Toby’s things at the Apple Rose Grille, the girls find a blueprint for the "East Wing" of Radley. : It also deepens the mystery surrounding Toby’s
Here is why that specific piece of paper was so significant: Pretty_little_liars_3x06
: Spencer realizes the blueprint is dated months before the construction of that wing actually began.