 The loss of her child induced acute depression in Mary Godwin , who was haunted by visions of the baby ; but she conceived again and had recovered by the summer . With a revival in Percy Shelley 's finances after the death of his grandfather , Sir Bysshe Shelley , the couple holidayed in Torquay and then rented a two @-@ storey cottage at Bishopsgate , on the edge of Windsor Great Park . Little is known about this period in Mary Godwin 's life , since her journal from May 1815 to July 1816 is lost . At Bishopsgate , Percy wrote his poem Alastor ; and on 24 January 1816 , Mary gave birth to a second child , William , named after her father , and soon nicknamed " Willmouse " . In her novel The Last Man , she later imagined Windsor as a Garden of Eden . 
