Death is life

After breaking down the fence the ghouls quickly bashed and slammed at the glass from the dome breaking that down with ease as well, all the guards tried to hold them off but quickly got overpowered and devoured alive along with the doctors and construction ponies, being able to smell the princesses the ghouls quickly headed towards the castle.

"Oh no, luna quickly teleport to the castle of friendship" celestia said with ergency.

They quickly teleported down to ponyville, once the ghouls could no longer smell them they quickly moved on to the still populated part of Canterlot leaving vile infection in their wake. The ponies of canterlot smelled an awful stench that was getting stronger and were quickly told to take shelter in there homes.

"What is that simply awful smell" prince blueblood said to a royal guard.

"It's nothing, just please get in your home and dont leave" the guard said.

"How dare you address me with such disrespect" blue blood yelled.

He started going to find the source of the dreadful smell, the guard tried to grab him but blue blood shook him off, once he saw what the smell was coming from it was too late, he went far beyond the safe point and the ghouls quickly locked on to him, he was too scared to move, the ghouls knocked him to the ground and started devouring him bit by bit, he screamed out in pain but no one heard, he started to drift into death but kept getting cut off by the ghouls biting into him and crushing his bones, finally his body gave out and he died, he quickly got back up and joined the ranks of all the other ghouls trampling and devouring the guards. Once all the guards were infected they started banging and trampling down all the doors of homes until nothing was left... canterlot was gone.