ANCHORAGE -

An 18-year-old Wasilla woman is behind bars, charged with causing second-degree burns to her five-week-old son.

Sky Stone was arrested July 7 for a May 25 incident in which the young mother “recklessly caused the physical injury to (the baby) by means of a dangerous instrument,” a class C felony, according to court charging documents.

Alaska State Troopers report Stone was arrested on a warrant for multiple charges after Troopers received a report from the Mat-Su Regional Medical Center on May 27 that the baby had been admitted with burns on his legs.

Investigators would later discover the “dangerous instrument” was found to be a heating stove in the corner of the family's living room, according to Stone's public hearing.

Dunlop did note the baby is doing much better.

“There were superficial second-degree burns,” said Palmer assistant district attorney Brittany Dunlop, who has been assigned Stone’s case. “They didn’t get to third-degree burns.”

With Stone still behind bars, her son has been placed in protective care.

In her July 9 arraignment, Stone pleaded not guilty to three counts in the single incident, including second- and third-degree assault charges with intent to cause bodily harm with a weapon, according to court documents.

“The grand jury found both intentional and reckless conduct, as evidenced by the language in the charging document,” Dunlop wrote in an email.

Stone faces a maximum penalty of 10 years in jail, but Dunlop said she would be in the one- to three-year presumptive range on the counts of intentional second-degree assault with a weapon and the second count of reckless second-degree assault. If she is found guilty only of the third-degree assault charge with intent to cause injury with a weapon she could face a maximum of five years in prison, Dunlop added.

Dunlop noted there is nothing to indicate there was a product malfunction due to some faulty piece of equipment in the stove to cause the baby’s injuries.

Stone is being held at the Mat-Su Pre-Trial Facility with a bail of $2,500. Dunlop noted in order for Stone to post bail she will have to propose someone willing to watch over her 24 hours per day, seven days per week.

Stone will next appear in Palmer court on Aug. 22 at 9:30 a.m.

This is a developing story. Check back to KTUU.com as more details become available.

Editor's note: An earlier draft of this story incorrectly stated the equipment that inflicted injury to the baby was a kitchen stove rather than a heating stove.