Pearl temperature

Exploration Stage: Foggy Oasis
From: Abbot Paku
Description: Another symptom of sleeping sickness is a decrease in body temperature. Most of the patients here look as if they are dying. But the pearl thermometer proves otherwise. Could you please take it so I can explain how to use it?
Completed: Look at the color of these pearls. They glow brightly, don't they? This indicates that you are awake and slightly excited. In a sleeping person, the color disappears and a little bluish light remains inside. This is a sign that there is a slight amount of life left in the patient.