08-13-2021-0109 - Blacklead

 Blacklead may refer to:

• Graphite, also known as "black lead"
• Blacklead, another name for the Plumbago drawing style and medium
• Blacklead Island, Nunavut, Canada

https://en.wikipedia.org/wiki/Blacklead

Abuse of chemicals by who - who stole agent blue.