I think it's more likely to be exactly the way she described it:
spoiler
She activated her psychic jewellery to give her combat skills and smacked the shape-stealing alien in the beak with a book.
A good old fashioned Doctor Who Community
I think it's more likely to be exactly the way she described it:
spoiler
She activated her psychic jewellery to give her combat skills and smacked the shape-stealing alien in the beak with a book.