An exclamation occurs in a language in two ways: as an exclamation of exclamatory means and as an exclamation of exclamatory sentences. In this master's thesis, we will discuss both types of exclamation in the novel The Strange Adventures of Hlapich the Apprentice by Ivana Brlić Mažuranić. All the communicative types of exclamatory sentences in this prose will be described, and the stylistic role of such rich exclamations will be determined. We will also present the results of an examination of children's syntactic knowledge, i.e., the level of academic achievements related to the application of acquired knowledge in recognizing and distinguishing an exclamatory sentence from a declarative sentence, and the correct use of punctuation to denote these two types of sentences (full stop and exclamation point). The examined population were pupils between nine and ten years of age. The research was conducted in 2021 and will be compared with the same research conducted in 2013. In this research, two language activities were examined – listening and reading. The examined syntactic corpus consisted of carefully selected sentences from the previously mentioned novel. Participants were given sentences without punctuation at the ends of sentences. Their main task was to recognize and differentiate sentences (by listening and reading) according to their message; that is, declarative sentences end with a full stop and exclamatory sentences with an exclamation mark. To check exclamatory sentences, only sentences that contain some exclamatory means (e.g. interjections) were selected, then additional forms whose role is to reinforce the statement, imperative sentences, sentences containing a call or invocation, sentences with vocative, and other exclamatory sentences with any other characteristics that would indicate exclamation. Exclamatory sentences from the administrative speech were also selected, which in their explanations contain information about in what manner every sentence was pronounced. When it comes to the differentiation of sentences according to their communicative purpose, interrogative sentences are, by their general syntactic nature, easily distinguished from declarative sentences. The distinction is much more complex when it comes to the relation between exclamatory and declarative sentences because often the intonation itself is the only sign of exclamation. Therefore, academic success associated with the ability to successfully differentiate between such types of syntactically complex sentences was examined.