A 42-year-old woman was busted traveling with escaped “Slender Man” stabber Morgan Geyser — who initially refused to give her name when she was found because she had “done something really bad,” according to a report.

The “adult accomplice” was sleeping on a sidewalk with Geyser, 23, when she was found Sunday afternoon in Posen, just outside Chicago — more than 150 miles from where Geyser cut off her ankle bracelet and escaped her group home in Wisconsin the previous day, CBS News reported .

The mystery pal claimed the pair were best friends, and said she hadn’t wanted Geyser to be alone when she cut off her ankle tag and escaped the group home , where she had been living since her release from her psychiatric facility in March this year.

The woman claimed the two had taken a bus

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