 Mary Linn Roby was born in Maine. She was an author and retired teacher. She was married to mystery writer Kinley Edmund Roby. She also wrote in other genres using the pseudonyms 'Pamela D'Arcy', 'Valerie Bradstreet', 'Georgina Grey', and 'Pauline Pryor'. |
Titles and year of publication:
| 1) Still As the Grave | 1964 |
| 2) Afraid of the Dark | 1965 |
| 3) Before I Die | 1966 |
| 4) Cat and Mouse | 1967 |
| 5) In the Dead of Night | 1969 |
| 6) Pennies on Her Eyes | 1969 |
| 7) All Your Lovely Words Are Spoken | 1970 |
| 8) If She Should Die | 1970 |
| 9) Lie Quiet in Your Grave | 1970 |
| 10) Some Die in Their Beds | 1970 |
| 11) That Fatal Touch | 1970 |
| 12) Dig a Narrow Grave | 1971 |
| 13) This Land Turns Evil Slowly | 1971 |
| 14) And Die Remembering | 1972 |
| 15) Reap the Whirlwind | 1972 |
| 16) When the Witch Is Dead | 1972 |
| 17) The White Peacock | 1973 |
| 18) The House at Kilgallen | 1973 |
| 19) Shadow Over Grove House | 1973 |
| 20) Speak No Evil of the Dead | 1973 |
| 21) The Broken Key | 1974 |
| 22) Marsh House | 1974 |
| 23) The Silent Walls | 1974 |
| 24) The Tower Room | 1974 |
| 25) Christobel | 1976 |
| 26) The Treasure Chest | 1976 |
| 27) The Hidden Book | 1977 |
| 28) Trapped | 1977 |
| 29) A Heritage of Strangers | 1978 |
| As 'Elizabeth Welles' | |
| 1) Seagull Crag | 1977 |
| As 'Mary Wilson' | |
| 1) The Changeling | 1975 |
| 2) The Wind of Death | 1976 |