What was only done under the Shadow?
'Monogamy' was at this period in the West universally practised, and other systems were regarded with repugnance, as things done only 'under the Shadow'.
About midday, creeping behind a great stone that stood like a pillar, Bilbo came on what looked like rough steps going upwards.
'There was a battle here three nights ago,' said Gimli, 'and here Legolas and I played a game that I won only by a single orc. Come and see how it was! And there are caves, Merry, caves of wonder! Shall we visit them, Legolas, do you think?'
'Nay! There is no time,' said the Elf. 'Do not spoil the wonder with haste! I have given you my word to return hither with you, if a day of peace and freedom comes again.'