Items with "Riker, Edward T." as Credited Author
The Arkham Madhouse (2 editions)El asiduo de las tinieblas (1 edition)
At the Mountains of Madness (2 editions)
Berge des Wahnsinns (1 edition)
The Case of Charles Dexter Ward (1 edition)
El color que cayó del cielo (1 edition)
The Colour out of Space (1 edition)
The Dreams in the Witch House (2 editions)
En las montañas de la locura (2 editions)
Escape de R’lyeh (1 edition)
Escape from R'Lyeh (1 edition)
El manicomio de Arkham (2 editions)
Il manicomio di Arkham (1 edition)
Le montagne della follia (1 edition)
El que susurra en la oscuridad (1 edition)
I sogni nella Casa della Strega (1 edition)
Los sueños en la casa de la bruja (2 editions)