Inferno is the first part of the Italian writer Dante Alighieri's 14th-century narrative poem the Divine Comedy, followed by Purgatorio and Paradiso. The Inferno describes the journey of a fictionalised version of Dante himself through Hell, guided by the ancient Roman poet Virgil. In the poem, Hell is depicted as nine concentric circles of torment located within the Earth; it is the "realm [...] of those who have rejected spiritual values by yielding to bestial appetites or violence, or by perverting their human intellect to fraud or malice against their fellowmen". As an allegory, the Divine Comedy represents the journey of the soul toward God, with the Inferno describing the recognition and rejection of sin. (Wikipedia, CC BY-SA 4.0)