Leech Mist - CR 3
As the crowd gathers for their nightly drinking, a light mist settles in amongst the patrons.
Type: magical; Perception DC 27; Disable Device DC 27
Trigger location; Reset repair
The mist only affects those that are drunk. Anyone who comes into contact with the mist after having a number of drinks equal to their Constitution modifier (minimum 1) must make a DC 13 Fortitude Save or lose 1 point of Con due to blood loss and gain the fatigued condition. If already fatigued, then the exhausted condition is gained instead. The mist can affect an area of up to 600 square feet.
The goblins that operate the fortunetelling press need blood in order for it to print its stories. Killing to get the blood would draw undue suspicion. Nobody, however, is going to give a second thought if heavy drinking from the night before leads to some lethargy the next morning. Usually the goblins have the leech mist trap rigged to trigger right at closing time as drunk patrons make their way to their tents. Once the blood is leeched by the mist, special vials hidden nearby collect the mist and distill the blood out of it. It can take several nights to collect enough blood to make a single printing run.