Henry Fuseli's lifelong interest in the work of the English poet John Milton (1608-1674) inspired many drawings that interpreted passages from Milton's epic poem Paradise Lost (1667). This early example illustrates the moment when the angels Ithuriel and Zephon discover Satan disguised as a toad in the bower where Adam and Eve are sleeping. Ithuriel forces Satan to reveal himself by prodding him with a spear. The lion in the background alludes to an earlier passage in the poem, when Satan takes on the shape of the beast in order to spy on the couple.