Look at what it tells you and the feelings you get. This is the tone. It talks about cold, darkness, silver light, tightly shut windows, chambers, marbled rooms. Not warm and fuzzy stuff. There is your tone.
Marbled Beauty was created in 1766.
Marbled polecat was created in 1770.
Marbled Salamander was created in 1807.
Marbled Duck was created in 1832.
Marbled whiptail was created in 1852.
Marbled cat was created in 1837.
Marbled Frogmouth was created in 1830.
Marbled flounder was created in 1877.
Marbled Minor was created in 1758.
Covered with marble, for example: This floor is marbled.
The marbled Polecat is not cat at all!
Tawny Marbled Minor was created in 1775.