There is a total of 1971 clues beginning with my
- Mysterious feature
- Mysterious fellow
- Mysterious field phenomena
- Mysterious figure
- Mysterious figure in "I Am the Walrus"
- Mysterious first name
- Mysterious flyer
- Mysterious foliage-sprouting proclivity?
- Mysterious for most
- Mysterious Geller
- Mysterious giant
- Mysterious gift
- Mysterious gift?
- Mysterious glow
- Mysterious glows
- Mysterious guy
- Mysterious Himalayan
- Mysterious Himalayan being
- Mysterious Himalayan creature
- Mysterious hoverer
- Mysterious hoverers
- Mysterious influence
- Mysterious inscription
- Mysterious John
- Mysterious knowledge
- Mysterious lady
- Mysterious letter
- Mysterious letter writer, maybe
- Mysterious letters
- Mysterious light in the sky
- Mysterious locale, once, with "the"
- Mysterious loch
- Mysterious lore
- Mysterious man
- Mysterious masked man of Broadway
- Mysterious matters
- Mysterious meeting of rail-riding farmers?
- Mysterious megaliths
- Mysterious missive
- Mysterious monster, familiarly
- Mysterious mountain climber
- Mysterious Mr
- Mysterious Mr Geller
- Mysterious Nuremberg foundling (1812?–33)
- Mysterious obj in the skies
- Mysterious objects delivered in December
- Mysterious old character
- Mysterious one
- Mysterious pattern in a field
- Mysterious pattern in a wheat field
- Mysterious phenomena … or a clue to solving 17-, 24-, 33- and 45-Across
- Mysterious place
- Mysterious power
- Mysterious power
- Mysterious prisoner of Louis XIV
- Mysterious psalm ender
- Mysterious quality
- Mysterious radar blip
- Mysterious radio couple
- Mysterious region
- Mysterious rural phenomena, and instruction for creating 20-Across, 11-Down and 32-Down
- Mysterious saucer
- Mysterious schoolteacher created by JK Rowling
- Mysterious sci-fi ships
- Mysterious sciences such as alchemy, necromancy, etc
- Mysterious Scottish figure, informally
- Mysterious Scottish loch
- Mysterious sight
- Mysterious sight in the sky
- Mysterious sighting
- Mysterious sighting in the Himalayas
- Mysterious sightings
- Mysterious sightings that hover
- Mysterious sign
- Mysterious sky sight
- Mysterious sky sighting
- Mysterious sky sightings, for short
- Mysterious sort
- Mysterious spaceship
- Mysterious stuff
- Mysterious submarine captain
- Mysterious Swede
- Mysterious swimmer
- Mysterious swimmers
- Mysterious thing
- Mysterious Tibetan snowman
- Mysterious to most
- Mysterious TV series of 1990-91
- Mysterious vibes
- Mysterious visitor
- Mysterious Wolfe
- Mysterious woman in "Idiot's Delight"
- Mysterious word repeated in Daniel 5:25
- Mysterious writing
- Mysterious, as some old inscriptions
- Mysterious, as writing
- Mysterious
- Mysterious: Var
- Mysterious; magical
- Mysteriously