Destruction of 357A

The destruction of 357A refers to an explosion within Tier 3 of O.V.E.R., which caused O.V.E.R. to temporarily lose access to the spacetime technology. Although O.V.E.R. has since recovered its access to the technology, the exact status of building 357A itself is unknown. The individuals responsible and the chain of events that enabled its destruction have been the topic of numerous discussions and investigations.

357A was destroyed through an explosion caused by a device taken from elsewhere in O.V.E.R. receiving data transmitted from the boulders. In most timelines, the one who planted the device was Hunter Jeremiah Hartley, blackmailed into action and directed through an earpiece. However, in the timeline where Hunter was killed, Marissa Ng was instead blackmailed into the job and died in the blast. The Flinchites seem to have originally wanted Mike to plant the device, but repeated corrections by Mikey, Mike, and Michael led them to instead choose Hunter.

The voice instructing the planting of the device was described by Hunter as sounding like Mike. This was confirmed by Alaska Mikey, who explained that he was made by the Flinchites to read the instructions.

During Mike's first stretch of captivity with the Flinchites, Ty Betteridge informed him that he would in the future come to be responsible for orchestrating 357A's destruction. This may refer to the reading of instructions or the transmittal of data, or to responsibility in some other way.

OVEdgar and O.V.E.R. Mike were intended to apply to Tier 2 security in order to further learn about O.V.E.R.'s recovery of the Security.exe program. This was briefly sidetracked when resentment over being ordered around led OVEdgar to plot to destroy Base, but Mike and Edgar later applied for Tier 2 security themselves.