A wicked aura around it, I felt as if it was grinning at me
or
A wicked aura around it, I felt as if it were grinning at me
?
A wicked aura around it, I felt as if it was grinning at me
or
A wicked aura around it, I felt as if it were grinning at me
?
You need a subject in your sentence. I would go with some thing like this : There was a wicked aura around that house; it seemed as if the house smiled at me with a evil grin.