Complex sentence: Thomas Carnacki is a fictional supernatural detective created by English fantasy writer William Hope Hodgson, who starred in a series of six short stories published between 1910 and 1912 in "The Idler" magazine and "The New Magazine".
Split into simpler sentences: Thomas Carnacki is a fictional supernatural detective created by English fantasy writer William Hope Hodgson. Carnacki was the protagonist of a series of six short stories published between 1910 and 1912 in "The Idler" magazine and "The New Magazine".