* Gretchen Marie Kasting (2013), Without contraries there is no progression : scientific speculation and absence in Frankenstein, Strange Case of Dr Jekyll and Mr Hyde, and “The Colour out of Space””. (Masters dissertation, University of Texas at Austin)

* Luciana Moura Colucci de Camargo (2013), “Presenca da tradicao da espacialidade gotica nos contos The Tapestried Chambre e The Dreams in the Witch House”, Anais do Silel, Volume 3, Number 1, 2013. (In Spanish. Compares the use of domestic space in Sir Walter Scott’s “The Tapestried Chamber” with Lovecraft’s “Dreams in the Witch House”)

* Luis Vieira (2013), “Historicidade e temporalidade na literatura de horror de Lovecraft”, Epigrafe edition zero, 2013. (In Spanish. “The Call of Cthulhu” as a historical document relating to the literary avant-garde of the mid 1920s)