An item you touch starts making the sound of crickets chirping. For the duration, spells within 600 feet that take 1 minute or longer to cast, including spells cast as rituals, are disrupted and cannot be cast until the chirping stops. Also, creatures within 120 feet will be unable to fall asleep until the chirping stops.
If a creature comes within 10 feet of the item making the chirping sound - the chirping will stop temporarily, then restart once the creature is 30 feet away. After 3 hours, or if the chirping is interrupted 3 times, the spell stops.
The sound can be muffled by 3 feet of stone, 1 foot of wood, or any magical silence. If the sound is muffled the effective distance is reduced by half for each layer of muffling.
At higher levels: For each level above 1st, the maximum duration increases by 1 hour and the number of interruptions required to stop the spell increases by 1. If cast at 5th level or higher the spell will last for 24 hours or until dispelled, regardless of how many temporary interruptions occur
* - (the wings of a cricket)
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