Rowena's known for a good while that she's been followed. It makes her heart beat quicker but she'd refused to let it affect the speed she walked at, not wanting to let them know that she knew.

Turning into an alley likely would seem like a bad move that only made her more of a target. But she was a witch, she was confident that she could fend off one man.

So, waiting until they'd walked far enough into the alley to not be immediately seen, turning to him with her hand thrown out.

"Manete." When he tries to take another step closer he'll find he can't lift his feet from the ground, her spell freezing them in place. If he struggles enough his vampire strength might be able to break him free, shocking to her.

"Why are you following me?"