Simple categories matching mysterious:

• person,
• artefact,
• god,
• hero,
• guru,
• actress,
• thing,
• executive,
• monk,
• creature,
• tune,
• king,
• pretender,
• child,
• mentor,
• crystal,
• aristocrat,
• entity,
• being,
• relic,
• phenomenon,

Members with property mysterious:

• Matt_"Daredevil"_Murdock,
• Superman,
• unconscious,
• Don_Draper,
• Obi-wan_Kenobi,
• Gandalf_the_Grey,
• Marlene_Dietrich,
• Greta_Garbo,
• Catwoman,
• Nostradamus,
• god,
• pretender,
• Ilya_Kuryakin,
• seasoning,
• sea,
• dark,
• eye,
• Mr._Miyagi,
• Peter_Pan,
• Kal_El,
• ounce,
• lyric,
• harp,
• seahorse,
• JD_Salinger,
• database,
• forecaster,
• sky,
• Jenna_Jameson,
• proposition,
• Willy_Wonka,
• loch-ness_monster,
• time_traveler,
• pigment,
• dark_crystal,
• ufo,
• dolmen,
• key,
• leucocyte,
• executive,
• nucleus,
• Nikola_Tesla,
• germ,
• sea_monster,
• crank,
• Napoleon_Solo,
• self,
• fresh_blood,
• jedi_knight,
• giant_bird,
• octopus,
• sphinx,
• flavoring,
• platonic_form,
• Howard_Hughes,
• ocean,
• neocon,
• brain,
• alien,
• recluse,
• Grace_Kelly,
• moon,
• adman,
• menhir,
• dragon,
• Cameron_Diaz,
• bacillus,
• bible,
• Spider-Man,
• electron,
• Yoda,
• song,
• lymphocyte,
• mentor,
• grey_cap,
• sun,
• title_song,
• giant_octopus,
• Wolverine,
• esp_user,
• hero,
• sash,
• Deadpool,
• Green_Lantern,
• Edward_Scissorhands,
• incommensurable_value,
• actress,
• lunar_goddess,
• big_foot,
• Marilyn_Monroe,
• magnetic_mass,
• culture_hero,
• mail,