For the first one, if you have an outline for an essay, you get a successful essay. For the second one, if you have a stratagem, you will have an impregnable fortress.
The adjective that is highlighted in the given sentence above is the word "all". This word is an example of an indefinite adjective. An indefinite word is used when it indicates a nonspecific amount or number of something or someone. The word "all" describes the word "books".
