The newly released booking footage appears to show the mother repeatedly using her hand to conceal a dark mark on her arm while being processed into jail. Authorities have not said what the mark is or whether it has any connection to the case.

Ohio house of horrors mom appears to have mysterious mark on her arm — and tries to cover it up in new booking video
Ohio ‘House of Horrors’ mom appears to have mysterious mark on her arm – and tries to cover it up

The mother of 16 kids kept crammed in a sickening house of horrors cowered as she was booked into jail — and appeared to try and hide a mysterious mark on her arm, new footage shows.

Elizabeth Siders, 33, looked frightened and submissive as she was searched by officers at the Southeastern Ohio Regional Jail on July 1 after she, her husband and her in-laws were found living in squalor with the children at their home, according to video from the facility obtained by Plunder True  Crime.

Siders tried to cover up a mark on her left arm as she was booked in jail, footage shows.
Siders tried to cover up a mark on her left arm as she was booked in jail, footage shows.Southeastern Ohio Regional Jail
Siders was booked at the Regional Jail on July 1.
Siders was booked at the Southeastern Ohio Regional Jail on July 1.Southeastern Ohio Regional Jail

Wearing a baggy red T-shirt, sweatpants and orange flip-flops, Siders kept her head down and obediently complied with the officers’ commands — and continued to rub and cover a dark mark on her left arm, the footage, which has no audio, shows.

In another video obtained by the outlet, Siders, appearing nervous and skittish, wears an orange jumpsuit and fidgets uncomfortably in a chair alone in a room in front of an officer’s desk.

Again she can be seen fussing with the mysterious mark on her forearm and appears to try and rub it against her pant leg at one point, according to the clip.

Siders’ attorney did not immediately respond to The Post’s request for comment.

Elizabeth Siders, her husband Gary Siders Jr., 37, her mother-in-law Christina Siders, 67, and father-in-law Gary Siders Sr., 73, were arrested after authorities descended on their home in Southeastern Ohio and found the 16 children, who police said “looked like almost feral animals.”

Booking photo of Elizabeth Siders.
Siders is being held on a $300,000 bond.Southeastern Ohio Regional Jail

The kids, who are between 18 months and 18 years old, were living in a trash and feces-filled room, confined to the cramped space for at least the past four years, according to authorities, who have described the grisly scene as “deplorable” and “third-world.”

Siders has “absolutely” denied that her children, who never attended school, were “feral” and claimed that they all could speak, despite initial reports suggesting they could not communicate.

The house was filled with feces and trash, according to police.
The house was filled with feces and trash, according to police.New York Post

The children were taken to hospitals across Ohio after the June 30 rescue. Some were listed in serious condition, including two who were airlifted to trauma centers and at least one who had to be intubated, officials said.

Siders, her husband, and her in-laws were each slapped with 16 counts of felony child endangerment charges. She is currently being held on a $300,000 bond.