Per 
Item #: SCP-6630
Object Class: Keter
Special Containment Procedures
Substance must be contained in a room made out of a material with a density higher than 10 g/cc or 10 g/cm3 (such as lead) with no windows. If substance ever does escape the facility it must be manually captured in a bullet proof glass box and then electrocuted if possible to neutralize it.
If any staff enter the containment room they're required to leave their keycards outside of the room in case of the substance tries to morph into one to open the door. Another staff member must be at the other side of the door at all times in case the other person needs to get out.
Description
SCP-6630 is a dark goo like substance that can morph into any object/being it touches and can go through most solids. 6630’s cells can't pass through dense objects.
SCP-6630-A
When the plague was first captured they didn’t know it could go through solids. It ended up escaping the testing chamber and turned into one of the scientist. It simple walked out of the facility because nobody knew who/what it had become. It then disappeared for a month until someone wrote a police report about black goo inside their house. It had killed 2 innocent people by [CLASSIFIED].
SCP-6630-B
~8 months after incident A~
By now the researchers figured out the proper containment room for the plague but still didn’t know everything. It was testing day for SCP-6630. Before anybody entered the room, the substance was neutralized from an electrocution system built into the room. When one of the researchers for 6630 entered the room with their testing kit and protective gear so 6630 couldn’t hurt or turn into the researcher, he started performing test on 6630. The plague began to wake up. Nobody was worried as 6630 is supposed to wake up mid testing to complete the rest of the active test. Little did they know 6630 could imitate the code on the researchers keycard. After the experiment 6630 tried going up to the keycard scanner and became the researchers keycard. Just like that the plague was gone. The last thing anyone heard coming from the room was a beeping from the scanner. Apparently the little gooey substance was getting smarter because it took a little over 4 months of looking with 2 emergency task force teams. They’ve been 1000x more careful since then.
