A celebrity pastor’s book signing at a Barnes & Noble took a dramatic turn when one woman began thrashing on the floor while other attendees screamed, shook, cried and appeared to collapse inside the store.

The intense scene unfolded during a Houston event for Kathryn Krick, the 35-year-old self-described “apostle” and lead pastor of Five-Fold Church in Los Angeles.

Krick had gathered more than 200 people for a May 12 talk and signing for her book Ignite Revival when the emotional event turned into what she later described as a religious “revival.”

Krick’s ministry practices what it calls spiritual “deliverance,” which it describes as freeing people from demonic forces. She later characterized the attendees’ physical reactions as encounters with God’s power.

Footage shared by Krick showed one woman approaching the signing table visibly emotional as her right hand began to shake.

Within seconds, the woman’s body started jerking. Her head snapped backward as two people moved in to support her.

Her knees eventually buckled, and she arched backward over a folding chair while a man cradled her head. Moments later, she was lowered onto the bookstore floor.

The edited video then cut to other attendees crying, screaming, doubling over and slumping in their chairs as Krick touched them or gestured in their direction.

During one interaction, Krick could be heard commanding something to “leave her body,” apparently performing what her ministry describes as spiritual deliverance.

Text placed over the video read: “God’s power is not limited to the four walls of a church.”

Krick said the reactions began while she was speaking and continued as people came forward to have their books signed.

“Revival broke out in this bookstore!” she wrote in an Instagram caption.

She also claimed people began “falling out of their seats” during her message.

“Person after person was touched as they came to get their books signed, and I was left in awe of the tangible love of God that filled the store,” Krick wrote.

She added: “Many were set free, some received impartation, and others were touched powerfully by God’s love. Hallelujah!”

Five-Fold Church, also known as 5F Church, describes its mission as bringing Christian revival around the world and restoring practices it believes were present in the early church.

According to the church’s website, the ministry teaches that God’s power can “deliver the oppressed and heal the sick.”

The church also says followers are called to “heal the sick, cast out demons, and raise the dead” by acting as vessels for what it describes as God’s anointing.

That “anointing,” according to the ministry, can be passed to others through a practice known as “impartation.”

Krick did not provide evidence to support the purported healings or demonic deliverances shown or referenced in the footage.

The Daily Mail said it contacted Krick and Five-Fold Church for comment.

The bizarre bookstore scenes have since sparked discussion about what drives such extreme physical reactions at modern religious events, especially when they unfold outside a church setting and in front of a crowd of onlookers.