Two teenage sweethearts acting like a modern-day Bonnie and Clyde who have left a trail of crime in their wake across the South, and unless they surrender, police say things aren’t going to turn out well for the duo.

Dalton Hayes, 18, and Cheyenne Phillips, 13, first vanished Jan. 3 from their hometown of western Kentucky, and since then they have traveled to South Carolina and Georgia, stealing vehicles and pilfering checks while driving around with two guns, according to an Associated Press report.

Norman Chaffins, sheriff of Grayson County, Kentucky, where the teenagers disappeared, warned ominously that there will “come a time when we’re not going to see him as an 18-year-old kid,” according to the report, but rather as someone who has stolen three vehicles and has two handguns with them.

Hayes’ mother pleaded for the couple to surrender and face the consequences of their actions, saying that she cried herself to sleep every night worrying about them, according to the AP report.

The couple has been together for about three months, and the girl had pretended to be 19.

Phillips is accused of writing checks to buy cigarettes and other items, which led the family to believe she wasn’t lying about being 19. By the time Hayes had realized she was just 13, he had already fallen in love with her, the family said.

Hayes had reportedly been fleeing trouble back at his home, where he faced burglary and theft charges. He was supposed to appear at a local judicial center on Jan. 5 to find out if the grand jury had indicted him, but by the time his case was heard, the teens had fled the area.

The sheriff said the duo’s behavior was becoming increasingly reckless and brazen, going onto other people’s property and forging checks for money. With no source of income, they are bound to get desperate, he said.

The teens were able to avoid police on two occasions, once when they crashed their first stolen truck and hid in the woods, according to police, who said they later stole another truck nearby.

They were last spotted at a Walmart in South Carolina where they are believed to have passed two stolen checks.

Authorities believe that they then made their way to Georgia and stole a pickup truck from the driveway of a man near Atlanta. The man had woken up to find his vehicle gun along with the two guns inside.