Related Clues:

• Barrels found around ancient dumps
• Absence of wind instruments after party left
• Depressed state - area around the Equator
• Low spirits -- calm part of the ocean
• Equatorial part of ocean with little prevailing wind
• State of depression
• Belt of light winds near the equator
• State of inactivity or stagnation
• Windless zone
• Finally regained former spirits, in depression
• Tedious condition, still under canvas here
• Detective sergeant initially imbibes vintage spirit for depression
• Ancient musical instruments found outside equatorial area
• Percussion instruments to convey familiar feeling of gloom
• Party line beats low spirits