Epic Quest Bio The case files
Case No. 75 · have you seen this molecule?

Indigo

the blue in blue jeans

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

Indigo, front view, against a height chart in nanometers
FRONT
Indigo, side view
SIDE · CID 10215

The suspect, from its real atomic coordinates. Drag to turn it. Height chart in nanometers, ruled every 0.1 nm. A 32-inch inseam is about 640 million times longer.

Rap sheet

Answers to
Indigo. Indigotin, to chemists.
Height
1.3 nm, standing on end.
Weight
0.44 zeptograms
Build
Flat as a board. Side on, it all but disappears.
Habits
Won’t dissolve in water. Dyers dip denim in its pale, soluble form; air turns it blue.
Marks
Only the lengthwise threads get dyed. That’s why jeans are white inside.
Known for
Clinging to the outside of each thread, so it wears off. That’s fading.
Associates
A cousin with two bromines: the ancient purple from sea snails.
Last seen
A 5 mL tube marked DENIM in the fridge at HQ.
17,000,000,000,000,000,000,000

of them in a pair of blue jeans, give or take.
Jeans vary. You’ve never seen one.

The poster on the street

The wanted poster for Indigo

This is the photocopied wanted poster for Indigo, No. 75. 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.

Not a player yet? Join the Epic Quest: the real role-playing game of Molecular Reality, a nanopore lab, with the CEO as gamemaster.