any negative feelings directed at her into a savage, killing force. Being in rapport with the phenomenon, Carolyn is able to draw on its power at will. Koenig is the only person on Alpha with paranormal abilities equal to Carolyn's. Though mentally and physically spent, he must now confront her. She maliciously strikes out with her mind—but he calmly resists her every attack. A vortex of wind builds in Command Centre, the two combatants standing in the calm eye, locked in a mental battle of wills. Denied the negative emotions she requires, Carolyn weakens and is herself swept aside by the gale. Overwhelmed by the struggle, the spinning mass in space vanishes. As its influence ebbs, Carolyn's victims are released and Maya is rescued in the nick of time. Later, Koenig and Helena mull over recent events. The Alphans have all returned to normal—with the exception of Carolyn. The experience has left her mind wiped clean; innocent as a newborn, she will have to grow up all over again. While the doctor reflects on the untapped potential of the human mind, a weary Koenig drifts into a dreamless sleep. Helena smiles at her sleeping lover, then gives him a tender kiss. Cast Starring Martin Landau — Commander John Koenig Barbara Bain — Doctor Helena Russell Also Starring Catherine Schell — Maya Featuring Tony Anholt — Tony Verdeschi Nick Tate — Captain Alan Carter Zienia Merton — Sandra Benes Guest Stars Deborah Fallender — Carolyn Powell Jess Conrad — Mark Sanders Also Featuring Antony Stamboulieh — George Crato Michael Walker — Carl Renton Gregory de Polnay — Chief Engineer Pete Garforth Lydia Lisle — Sally Martin Lucinda Curtis — Tessa Dallas Adams — Sam Uncredited Artists Nicholas Young — Peter Vic Armstrong — Recreation Centre Security Guard Quentin Pierre — Corridor Security Guard Jenny Cresswell — Command Centre Operative Music The score was re-edited from previous Space: 1999 incidental music tracks composed for the second series by Derek Wadsworth and draws primarily from the scores of "One Moment of Humanity" and "Space Warp". Production Notes Prolific writer Terrance Dicks is best known for his long-term association with Doctor Who. In 1968, he joined the BBC programme as an assistant script editor during a period of transition; in 1970 he became script editor, holding this position for the entire five-year Jon Pertwee era. Through the 70s and 80s, he would still write