ISBN-13: 9781616460013 / Angielski / Miękka / 2009 / 418 str.
A Spectrum Unseen collects 14 short stories and 2 novellas dealing with invisible people and creatures in classic science fiction and fantasy. Included are H. G. Well's The Invisible Man, and such stories as The Crystal Man, The Horla, The Gift of Fernseed, The Face of Air, Sister Hannah, and more.