Epic Quest Bio The case files
Case No. 5 · have you seen this molecule?

Melatonin

the hormone your brain makes in the dark

File sealed

The detectives are still writing this one up. The poster and the facts are below; the film and the interrogation room open soon.

Booking photographs

Melatonin, front view, against a height chart in nanometers
FRONT
Melatonin, side view
SIDE · CID 896

The suspect, from its real atomic coordinates. Drag to turn it. Height chart in nanometers, ruled every 0.1 nm. A nanometer is about how far a fingernail grows in a second.

Rap sheet

Answers to
“The hormone of darkness.” Doesn’t mind.
Height
1.2 nm, standing up straight. Usually curled up.
Weight
0.39 zeptograms
Build
Small and flat. Two rings and a tail.
Hours
Nights only. Ordinary room light sends it back in.
Marks
Made from serotonin. Two small changes and it’s someone else.
Associates
Plants, tart cherries and some very old bacteria make it too.
Last seen
A 5 mL tube marked SPIT, NIGHT in the freezer at HQ.
230,000,000,000

of them in a teaspoon of spit at night, on average.
Depends whose. You’ve never seen one.

The poster on the street

The wanted poster for Melatonin

This is the photocopied wanted poster for Melatonin, No. 5. They were made for noticeboards around Boston, Cambridge and the rest of the east coast.

Found one? Scan its QR code with your phone. If you're a signed-in player, the sighting goes on your record with +1 XP.

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