"Lamia" is a narrative poem written by the English poet John Keats, which first appeared in the volume Lamia, Isabella, the Eve of St Agnes and Other Poems, published in July 1820. The poem was written in 1819, during the famously productive period that produced his 1819 odes. It was composed soon after his "La Belle Dame sans Merci" and his odes on Melancholy, on Indolence, on a Grecian Urn and to a Nightingale and just before "To Autumn". Source: Wikipedia (en)