The Creeping Breath Curse

"We need Heart or Grail to suppress this curse. Otherwise, it will not keep us from our goal, but it may trouble us later."

- In-game text

 is an Obstacle with the Curse aspect, appearing during Expeditions.

Defeating
"The treasures ahead lie under a Creeping Breath Curse. Without Grail or Heart, it may follow us back home, and settle like spores into our lungs."

- (when confronting the obstacle)

As told by the description, Followers with or  aspects can defeat this Obstacle with a probability depending on the aspect magnitude.

We call upon the Ring-Yew,...
 * 1 < < 5: ... who is succulent. Perhaps the power of that old and fecund Hour, the Ring-Yew, can protect us from the Curse. Perhaps not. 30% chance of success.
 * 5 <= < 10: ... who encompasseth. We carry enough Heart aspect to quell the Curse... probably. 70% chance of success.
 * 10 <= : ... who is renewed. We are strong enough in Heart to be secure against the Curse. 90% chance of success.

We call upon the Red Grail,...
 * 1 < < 5: ... which is not sated. The Red Grail might preserve us from the Curse. It is a fickle hour. 30% chance of success.
 * 5 <= < 10: ... which takes life. The Red Grail's hungers should preserve us from the Curse. 70% chance of success.
 * 10 <= : ... which gives life. The Red Grail's vigour will almost certainly preserve us from the Curse. 90% chance of success.

Success
"Our power is stronger than the power that was here. The Curse won't touch us."

- The Curse Shrivels (After success)

Dispelling the Curse will remove the Obstacle and continue the expedition.

Failure
"There is a price to be paid when one trespasses in a place like this. Some day soon, the curse will tighten around us."

- The Curse Clings (After failure)

Failing to dispel the Curse will trigger the Dormant Creeping Breath Curse action. The Obstacle will however be removed.