Taxonomy Access Control doesn't work on child page

I found a back door, when restricted anonymous role to taxonomy term pages. I installed TAC light-6.15, I set up all Terms page are not accessible to Anonymous. Assuming books (I'm using book structure) under these terms are hidden as well. But only book root was blocked, if anonymous go to child page, it is still accessible. For example,'Manual' is a restricted term, and manu01 is a book under this term, it has many pages. If anonymous try to access to '/manu01/', it shows 'Access Denied', but they can go to '/manu01/page1/' without any restriction and warnings.

Please help this. Thanks.