Fourth Doctor Adventures - A modulated frequency wave cancellation signal isn't something that the Doctor and Romana expect to detect in 1960s London. But then they don't expect to find Professor Lanchester, the man who invented it, lying unconscious. Or MI5 investigating. With the help of MI5...

Fourth Doctor Adventures - A modulated frequency wave cancellation signal isn't something that the Doctor and Romana expect to detect in 1960s London. But then they don't expect to find Professor Lanchester, the man who invented it, lying unconscious. Or MI5 investigating. With the help of MI5...

Third Doctor Adventures - When the Brigadier and Jo are called in to look into a breakthrough in the field of portable communication, the Doctor has to stay behind with communications problems of his own – a strange signal coming through the TARDIS console that's burned out its circuits. When...