Epic Quest Bio The case files
Case No. 96 · have you seen this molecule?

Hemocyanin

the blue in horseshoe crab blood

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

Hemocyanin, front view, against a height chart in nanometers
FRONT
Hemocyanin, side view
SIDE · PDB 1LLA

The suspect, from its real atomic coordinates. Drag to turn it. Height chart in nanometers, ruled every 0.5 nm. A nanometer is about how far a fingernail grows in a second.

Rap sheet

Answers to
Hemocyanin: “blood blue.” Lives up to it.
Height
7.5 nm, and that’s one of 48 pieces.
Weight
120 zeptograms. All 48: 5.6 attograms.
Color
Blue with oxygen. Colorless without, as here.
Marks
Two copper atoms per piece hold each oxygen.
Habits
Floats loose in the blood. Drops its oxygen in a tenth of a second.
Associates
Spiders and scorpions. Horseshoe crabs aren’t crabs.
Last seen
A 5 mL tube marked CRAB in the fridge at HQ.
35,000,000,000,000,000

of them in a teaspoon of horseshoe crab blood, give or take.
48 pieces each. You’ve never seen one.

The poster on the street

The wanted poster for Hemocyanin

This is the photocopied wanted poster for Hemocyanin, No. 96. 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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