A 12-year-old Issaquah Middle student pleaded not guilty Tuesday to allegations that she hacked into a classmates Facebook page and posted lewd messages.

The girl was charged with cyberstalking and first-degree computer trespassing in juvenile court.

Her 11-year-old co-defendant is scheduled to have a capacity hearing on May 24. Washington state law presumes children ages 8 to 11 aren’t capable of committing crimes so she must go through a capacity hearing, to see if she knew what she was doing was wrong.

The Reporter does not name juveniles charged with crimes.

The investigation of the Issaquah Middle School students began after the alleged victim’s mother called Issaquah Police March 18 and took her story to broadcast media. Prosecutors allege the girls used the victim’s Facebook account to send out messages offering sex to boys at school and to post lewd “updates,” according to charging papers.

The suspects also allegedly posted offensive photos on her page, including one of the victim with horns graffitied on her head.

Once the victim’s mother discovered what had happened to her daughter’s Facebook page, she believed it was the suspects because they had reportedly bullied her daughter in the past.

The mother confronted the girls, who allegedly admitted to her accusations.

Police believe the girls got access to the Facebook account, after the login was saved to one of their computers.

If convicted, both of the girls could face up to 30 days in juvenile detention.