Subjuntive or not?

English as a Second Language English Vocabulary, Grammar and Idioms
1

Hi,

In Dan Browns’s novel Angels and demons , a character says,

  • I think it best she not come up here and see her
    father this way."

I do not think it is subjunctive, or is it ?

Please explain why not :

…she does not come up here…

Tom

2

Hi Tom

Yes, I would say that’s subjunctive.

Amy