The underground laboratory was thrown into complete confusion.

  Mercenaries were extremely tense everywhere, under the urging orders of the upper ranks, back and forth in important areas, exhausted from running around.

  C4 bomb and cracking USB drive have been installed.

  Ling Hu and others are destroying or stealing important experimental equipment and research materials.

  Feng Zile was also carrying out his own mission.

  Holding a dagger.

  Feng Zile shuttled back and forth between the warehouse and Central Bridge, occasionally ambushing passing mercenaries to reduce the enemy's firepower for Ling Hu and others who were on a mission.

  The Central Bridge has two levels.

  The lowest level is a sunken underground river channel, and some experimental wastewater is discharged from here into the outside world.

  And above is the normal channel.

  Due to the underground river, the passageways on both sides are blocked and can only be connected through three steel plate bridges spanning over the underground river.

  Thus, the entire Central Bridge area becomes the most densely populated area of human traffic for the underground research institute.

  Feng Zile carefully hid here.

  A pair of eyes stared intently at the passing mercenaries.

  Underneath every steel bridge, he had installed remote-controlled plastic explosives.

  At critical moments, Feng Zilei would detonate these explosives, making it difficult for the defending mercenaries to reach Ling Hu and others.

  But now is not the time.

  The C4 explosives have been set in place.

  The pre-set five-minute countdown has now passed halfway.

  As the leader of this mission, Ling Hu has not yet received specific action instructions.

  So Feng Zile is still waiting.

  Finally, the voice of Ling Huo sounded in the headphones.

  She commanded everyone:

  "The plan is complete, there's one minute left before the C4 bomb explodes, everyone quickly follows the previously set evacuation route and leaves the underground research facility immediately!"

  Then everyone began to retreat.

  Feng Zile detonated a plastic bomb.

  Three steel bridges were completely destroyed, and the mercenaries inside were trapped in the underground laboratory, completely isolated from the outside world.

  And in order to ensure that the C4 explosives would not be dismantled by mercenaries arriving after they left, Ling Hu also set up some traps around point A.

  As soon as the mercenary enters Lab A, the pre-set tripwire will be triggered, detonating the connected flashbangs, smoke grenades and hand grenades.

  Spring and Cauthorn also made similar moves.

  Finally, everyone withdrew.

  They successfully converged in an abandoned subway tunnel outside the underground laboratory.

  At this time, the C4 explosives set by Ling Hu and Chun Mai had already been discovered by the mercenaries of the underground research institute.

  But it's too late.

  Only ten seconds left until C4 bomb detonation.

  These mercenaries originally intended to dismantle C4.

  But when they saw the countdown rapidly decreasing on the display screen, all they could exclaim was:

  "No good! It's too late!"

  Then he quickly rolled and crawled outwards as fast as possible to get away from the lethal radius of the C4 explosive.

  But it's too late anyway.

  Time was running out, with only three seconds left.

  Even the countdown's "tick-tock" sound became short and sharp due to the impending explosion, like the low hum of the god of death, terrifying beyond measure.

  Although they were accustomed to death, when their own lives were about to end, the hearts of these mercenaries were thoroughly occupied by fear.

  Their faces were ashen.

  After being transferred to the underground research institute, the scenes of the tragic and inhumane sights I witnessed all emerged in my mind.

  Finally, the long three seconds had passed.

  The countdown of C4 bomb has ended.

  The detonator initiates, a string of electric current is transmitted into the blasting cap, thoroughly detonating the C4 explosive.

  Rumble rumble!!

  In Lab A, a C4 explosive detonated under the workbench.

  Fierce flames filled the entire laboratory.

  Enough energy to destroy everything within a 20-meter radius was released in an instant.

  Like a beast trapped in a mad flood.

  Destroy everything in Laboratory A into the smallest fragments.

  A visible shockwave, in the entire space, set off a shocking wave, spreading out in all directions.

  Causing even more severe secondary destruction.

  It was even more so that the entire wall was directly destroyed, allowing the energy that had nowhere to vent to find an outlet in an instant and spread rapidly to other parts of the underground research institute.

  Almost simultaneously, the C4 explosive leaves at point B detonated one after another.

  This explosion was even larger in scale.

  Because point B is the energy supply center of the entire underground base, not only are there three huge power generation machines, but also many devices for storing dark energy.

  Explosion of C4 triggers a chain reaction.

  First was a shockwave with a radius of nearly twenty meters, destroying everything around it.

  Immediately destroyed the huge power generator.

  The underground laboratory requires a large amount of energy, so the generators are all top-of-the-line configurations, capable of producing super high voltage electricity in excess of tens of millions of volts.

  And the power of these generator explosions is simply beyond that of C4 explosives!

  Thus an even more violent explosion was produced.

  Rumble rumble rumble!!!!!

  Rumble rumble rumble!!!!!

  Rumble rumble rumble!!!!!

  Three giant power generators, roughly the size of a city bus, exploded one after another.

  A fierce flame suddenly burst out.

  Like a sun, it fell into the underground research institute, its scorching high temperature can incinerate everything, and its powerful shockwave can sweep away all things!

  But what's even more deadly is yet to come.

  The explosion also caused a sympathetic detonation of the storage tank for the propellant.

  A massive amount of highly compressed dark energy swept across the entire area in an instant, making the already intense explosion even more enormous!

  Both fuses were detonated.

  The underground laboratory has thoroughly returned to its former state of emptiness.

  The blast generated shock waves and flames that completely covered every area.

  Machine rooms, warehouses, Area A, Area B and the central bridge that had been blown up in advance, all sections of the underground research institute were experiencing intense explosions.

  Those mercenaries have long since vanished.

  In the endless flames, torn into pieces, and then burned into dust.

  Even biochemical variants did not escape unscathed.

  Incubators burst one after another.

  Biochemical liquid splashed all over the ground.

  These variants were experimented on and became riddled with holes, then suffered the devastation of explosions. Their physical strength was not even comparable to that of ordinary humans, and they all ended up like mercenaries.

  Except for one mother body biochemical ghost...

  But anyway.

  Two C4 explosives, as well as three power generators and numerous energy storage tanks, have detonated in a sympathetic explosion, turning the underground research facility into a blazing inferno.

  The originally built supporting structure can no longer bear the weight of the upper rock layer.

  The underground research institute built by the Shengdian Group at a huge cost was completely destroyed by Linghu and his party, buried under the constantly collapsing soil and rocks.