Yes this sentence is a fragment. It doesn't have a predicate and sentences need to have a subject and a verb (predicate) in order to be complete.
Hey there!
This link is All About the topic sentence of a paragraph:
http://www.csun.edu/~hcpas003/topic.html
Hope it helps!
Literary work in which special intensity is given to the expression of feelings and ideas by the use of distinctive style and rhythm; poems collectively or as a genre of literature.
