Historical clue formulations

• Land, marked — 2026-09-05
• "The ___ thickens" — 2026-08-17
• "The ___ thickens ..." — 2026-05-25
• Something that's hatched — 2026-05-08
• Parcel of land — 2026-01-11
• Scheme — 2025-02-23
• It might have a twist or hole — 2024-12-30
• It might thicken or be full of holes — 2024-07-17
• Secretly plan — 2024-05-13
• Twists can thicken it — 2023-12-30
• Film's story line — 2023-10-10
• Feature of a garden or novel — 2023-08-29
• What a book review might spoil — 2023-06-20
• Gunpowder ___ (1605 English conspiracy) — 2023-06-09
• Scheme — 2023-05-06
• What's spelled out, appropriately, after mapping the coordinates indicated by this puzzle's circled letters — 2022-11-10
• Kind of device used in filmmaking — 2021-05-07
• "The ___ thickens" — 2019-12-16
• *The outcome of a story might hinge on one — 2019-05-23
• Cemetery purchase — 2017-12-05
• Whodunit's essence — 2017-07-26
• Secret plan — 2016-11-15
• What a spoiler may spoil — 2016-09-28
• Cook up a conspiracy — 2015-10-28
• Parcel of land — 2015-05-11
• What a spoiler might spoil — 2015-02-01
• What cabalists do — 2014-11-06
• Garden — 2013-06-16
• Map (out) — 2012-06-28
• A bad one may contain holes — 2012-06-17
• Garden ___ — 2012-04-22
• Secret plan — 2010-03-23
• Novelist's need — 2008-09-28
• Churchyard unit — 2008-06-29
• Underhanded plan — 2008-03-31
• Coup start — 2008-03-16
• Storyline — 2008-03-11
• It might consist of a 19-Across — 2007-08-18
• One to grow on? — 2006-12-29
• Makings of a coup — 2006-12-24
• Scheme — 2006-10-11
• Storyline — 2006-09-12
• With 38-Down, common device on "The Twilight Zone" — 2005-08-21
• Connive — 2005-08-17
• It may thicken — 2005-06-08
• Lead-up to a coup — 2004-12-16
• Bit of intrigue — 2004-09-17
• Novel idea — 2004-04-08
• It often thickens — 2004-03-02
• Paranoiac's worry — 2003-08-08