This paper introduces a SNSF PhD project that provides an innovative conceptual framework to investigate the Third Intermediate Period Amduat papyri. The article is organised in three thematic sections. In the first part, the contextualisation of the topic is provided, alongside the current state of research on the Amduat between the New Kingdom (1539-1069 BCE) and the Late Period (664-332 BCE). In the second part, the need to create a database, to digitally assemble the Amduat papyri scattered in the museums around the world, is addressed. The third part argues how this project will examine the Amduat papyri. In this section, the main principles of the philologic and semiotic analysis of the Amduat papyri are presented. By taking these ideas into account, the paper develops a new methodology to investigate the Amduat papyri, and provides critical tools to shed light on the intellectual context regarding the representation of the Netherworld between the 21st and 22nd dynasties.