This chapter describes the prevalence of prosimetrum – the alternation of narrative prose and skaldic verse – in the Íslendingasögur, with a brief consideration of prosimetrum in konungasögur and samtíðarsögur. A distinction is introduced between verses which are quoted as the dialogue of characters and those which appear to corroborate the narrative prose; it is explained that this distinction is established through the way the verses are incorporated in the prose, and is not inherent in the stanzas themselves. The aesthetic effects of verses representing dialogue in saga prose – additional content, the direct perspective and apparent voice of a character, control of narrative pace and ornamentation – are set out. The plausibility or otherwise of the impromptu recitation of skaldic verse is discussed, and a contrast drawn between the elaborate artificiality of skaldic verse and the ostensible simplicity of saga prose. The distinction between the two kinds of verse use is then problematized. A discussion of how and why the prose and verse first came together comes next, with speculation about how authors constructed their prosimetrical sagas and the literary effects achieved.