When I was afraid is the subordinate clause because "that is the time" can stand by itself and can be recognized as a independent clause. I believe that the subordinate clause would fall under the adjective clause family, mainly because "when I was afraid" directly refers to "time", which is a noun.
In the book, "Nethergrave", Jeremy is given a photograph with a note to do his own homework every year on his birthday from his father.
Explanation:
how their emotions are and their physical capabilities
