Robin ran as fast as he can when he saw Batgirl lying on the floor with blood stains on her shirt and on the floor.
Robin: "BG; come on can you hear me?"
Connor: "I don't hear her heartbeat".
Robin was performing CRP on Batgirl but after reaching 30 heart pumps with no reaction he stops and looks at them and gets up.
Robin (Seriously): "She's dead; who did this will pay… hard".
Wally: "Dude you okay".
He puts a hand on his shoulder but Robin shakes his shoulder and moves forward, a tear slips up from his eye under his sunglasses but he hides it.
Connor: "Wait where's Megan and Artemis?"
Wally: "I don't know; Robin can you hack the security system?"
When they looked at him he was already suited up and hacking the security cameras suddenly a video pops up on the big screen; it was horrifying; Batgirl was fighting an unknown black suited armored man and he was clearly winning, he had a lucky hit at her then she felt to the floor, she didn't have her utility belt so it was harder fighting him, after that the man came closer to her fallen body and stabbed her in the back with his sword and walked away.
Robin changed the camera to the kitchen, Megan was baking a cake and the man came from behind her knocked her out, stabbed her in the sword in the back and lighted a fire in the room.
He left for another room; he left for the gym where Artemis was lifting weights where he sneaked from behind her and stabbed her in the back with his sword at the same place he stabbed Batgirl and Megan.
The next thing was obvious; he ran away. Robin then heard Wally's voice from behind him; he turned around to see Wally and Connor were in their costumes, holding the girls bridal style.
Kid Flash: "We found them".
Superboy: "I don't hear any heartbeat from Artemis and I don't think Megan is OK".
Robin: "They are dead, and so is the one who did it".
Kid Flash: "Which leads the question: Who did this?"
Robin: "I don't know, I didn't recognize him but when I do find him…"
Batgirl; Megan and Artemis moved a little then suddenly stood up, green paled (well Megan's pale was actually a little lighter) their eyes were white with a dash of sky blue in the middle of their eyes, there was a cracking voice as they moved and stood next to each other.
Robin: "Batgirl? Artemis? Megan?"
Superboy: "What's going on?"
Kid Flash: "Guys, I don't think dead people do that".
Robin: "Not Dead but Undead".
Kid Flash: "What? Like zombies?"
Superboy: "How do you know that?"
Robin: "I watch a lot of movies".
They looked to the girls and they started attacking the boys, they tried to defend their selves 'cause they didn't want to hurt them but they wanted to, the guys came out running of the room to the gymnastics room.
KF: "What just happen?"
Sb: "I'll let ya know when I figure it out".
KF: "What will we do?"
Rob: "Stay alive, it's the only thing we can do".
Sb: "We can't stand by and do nothing".
Rob: "Until we figure something out we will… look they don't know who we are, they won't hold back on killing us".
Sb: "I hear footsteps coming".
The girls then broke down the wall of the gymnastics room, the guys ran away and the girls followed they kept running to the main room and the only exit was the zeta tubes, they ran there but it didn't work.
KF: "What's wrong with the zetas?"
Rob: "They are out of power just like the Watchtower communicators and any other communication devices, even my wrist communicator".
KF: "Something is seriously off here".
Sb: "What was your first clue?"
Rob: "Guys we can't afford to be…"
The three girls entered the room and came closer to the shutdown zeta tubes, and the guys were stuck.
KF: "What now?"
Rob: "When I learn how to defeat a zombie without hurting them, I'll let ya know".
Sb: "We might not have enough time for that".