[s5e9]: Lies Of Omission

Parrish has been subconsciously stealing the bodies of the failed Chimeras and taking them to the ancient stump.

In a controversial move, Scott denies Liam’s plea to bite Hayden to save her life. He’s afraid the bite will kill her since she is already a "failed experiment". Parrish and the Nemeton Lydia and Parrish finally track down the Nemeton . [S5E9] Lies of Omission

Stiles killed Donovan in self-defense, but his guilt has kept him silent for weeks. Parrish has been subconsciously stealing the bodies of

Both are identified as "failures" and executed by the Doctors. [S5E9] Lies of Omission