This paper deals with the 24-line mythological epyllion Progne et Philomela (Anth. Lat. 13 R), an anonymous Virgilian cento of presumed North African origin, which is usually dated to the fourth or fifth century and is marked by considerable obscurity. The aim is to shed some light on the most intriguing parts of this elliptical retelling of the given myth, in particular the puzzling network of family relationships and the extended talking-blood metaphor. Offering a new perspective on the text, the author claims that its general ambiguity is, to some extent, a purposefully adopted authorial strategy rather than a by-product of the cento technique. For this reason, it is proposed that the poem might have been written as a sort of mythological riddle to be solved by its readers.

Tertullian's treatise De pallio is the briefest and most difficult of the North African's works. Its purpose, ostensibly, is to advocate for a change in clothing from the toga to the pallium. This sartorial shift functions, in turn, as a metaphor for conversion to the philosophical life, which, at the end of the treatise, is revealed to be the Christian life. Towards the centre of the work, Tertullian turns to nature to support his argument, citing the example of five different animals. This essay analyses his description of the chameleon, arguing that it is a riddle: drawing on the natural historians, Tertullian paints a realistic picture of the small lizard, but at the same time, skews the description of these features to depict the philosopher. The purpose of this central sketch is to alert listeners to the nature of the speech as a guessing game, and to point to the complex identity of the speaker.