death at the Great Wolf Lodge in the Pocono Mountains. Chaz Harrison / Facebook

She said she wanted to join her husband and son in death, according to the affidavit.

Cops entered Room 2030 and found father and son dead on mattresses with multiple stab wounds to the chest.

A butcher knife was found on the bathroom floor and a smaller knife in the bathroom sink, according to the police.

4 Metallica Rose Harrison poses in an undated photo with her husband, Charles. Chaz Harrison / Facebook

Cops also found several suspected containers of blood and multiple bottles of medication.

The seemingly happy family first checked in at Great Wolf Lodge on Sept. 21 and extended their reservation on Oct. 5.

Metallica Rose was taken to a hospital in nearby Stroudsburg for cuts to her left wrist and superficial puncture wounds on her neck, according to the affidavit.

She remains in police custody.