. . "The Doctor, Peri, and Frobisher investigate a murder in a castle on Sylvaniar. Can the Doctor find the mysterious killer lurking in the shadows or will he be the next victim?"@en . . "Marvel Comics"@en . "The Doctor, Peri, and Frobisher investigate a murder in a castle on Sylvaniar. Can the Doctor find the mysterious killer lurking in the shadows or will he be the next victim?"@en . "Comic - 1 part"@en . "The Cybermen"@en . . . . . . . . . . . . . . . "Exodus"@en . . . . "Genesis!"@en . . "Revelation!"@en . . "Sixth Doctor"@en . . . "Revelation! (comic story)"@en . . .