Brings back memories indeed:

"For six long Martian months I had haunted the vicinity of the
hateful Temple of the Sun, within whose slow-revolving shaft,
far beneath the surface of Mars, my princess lay entombed--
but whether alive or dead I knew not. Had Phaidor's slim blade
found that beloved heart? Time only would reveal the truth.

Six hundred and eighty-seven Martian days must come and go
before the cell's door would again come opposite the tunnel's
end where last I had seen my ever-beautiful Dejah Thoris."