In the year 1968, there were four separate cases of submarines disappearing under mysterious circumstances: the American Scorpion, the Israeli Dakar, the French Minerve, and the Soviet K-129. The last of these events came under scrutiny when, six years later, a United States black project disguised as a manganese mining operation attempted to locate and salvage what was left of the Soviet submarine. This program was known as “Project Azorian,” and was primarily carried out by a single vessel known as The Glomar Explorer.

The project was ultimately a failure, given that the submarine itself was never actually recovered, though it did become a particularly famous failure. Any and all inquiries about what was found and extracted from the bottom of the ocean were dismissed with a statement that the existence of such a project could neither be confirmed nor denied, setting a legal precedent that continues to be relevant today. Government statements of this nature came to be known as “Glomar responses,” named after the supposed “mining vessel” that had been deployed. Despite a complete lack of successful salvage, the knowledge obtained during this mission was still considered dangerous enough to require a complete restructuring of intelligence disclosure within the United States.

This is because the search party never actually found any trace of the submarine whatsoever; only the eggs that it had laid. According to eyewitness accounts, a cluster of seven ovoids were discovered, each roughly the size of an orca whale. Their shells were reinforced with depleted uranium, rendering them too heavy to be lifted by the Explorer’s crane, and at least one of the eggs was damaged by attempts to do just that, resulting in its radioactive yolk spilling onto the seafloor below.

After being briefed on these findings, President Nixon ordered the annihilation of all remaining eggs. He considered the possibility of a fleet of feral submarines too great of an existential risk, as there was no telling which side in the Cold War they would lend their support to. A Mk 101 Lulu depth charge was deployed for the task of extermination, equipped with an eleven kiloton nuclear warhead. With its detonation, the threat was successfully eliminated long before it could ever hatch.

As for their mother, however, she may still be out there. While most nuclear submarines only carry around three decades worth of fuel at a time, the metabolism of their wild cousins is far too poorly understood to say for certain that she’s met her demise.

Both the Sirens and Charybdis were considered as possible culprits of the four disappearances.

The dolphin word for submarine is indistinguishable from a sonar ping.