Peter nodded at that with relief. "Awesome. So... Titans go?" he asked as he backed away towards the door.
"I think we've found it." Dick said again.
In the same tone...
In the exact same way...
Peter looked to the others, who seemed unphased. "I... know... you said that already."
"I think we've found it." Dick repeated.
This was beginning to deeply unsettle Peter. "Are you okay?"
"I think we've found it." He said again. 
It was as if time itself was being rewinded repeatedly.
Or maybe his mind had finally broke...
"Dude this isn't funny." Peter replied. 
Then, suddenly, he heard a hissing female voice whisper in his ear. "It's not a joke this time."
Peter jumped and spun around with an alarmed shout. However, when he turned around nobody was there. Panting, Peter turned around to see Dick, Kori, and Constantine doubled over, clutching their heads in pain. 
"Guys?" He asked with concern. "What's wrong?"
"What's wrong is that SOMEBODY is going on a psychic rampage right about now." Constantine replied with a groan. "I take it daddy dearest didn't approve?"
Peter gave a half chuckle at that. "No, not exactly."
"Not a problem." the investigator replied as he took a small jar out of his pocket, filled with a strange dark colored powder. Then he dipped his finger in and smeared it on Dick and Koris forehead, before doing the same for himself. "There. Minor relief. Like Tylenol."
This actually did seem to help the others as their pain seemed to stop. Then suddenly, their vision changed and was filled with red. 
A red light, illuminating the room, blinking rhythically. Then, just when that happened, they heard the Titans alarm, blaring as if it had been going off for hours.
"What the hell!?" Peter shouted, covering his ears.
Dick went to the monitor and swiftly turned it off.
"How long has the alarm been going off?" Kor asked with concern.
"I don't know, but it can't be good." Dick replied, before pulling up a security feed of the city skyline, with flames towering over the buildings and pillars of smoke rising into the sky. "Oh God."
"When was this?" Peter asked. "Is this right now!?"
"This was an hour ago." Dick replied, before switching the screen to an areal view from space. 
Their eyes collectively widened as they could see the flames formed in the same exact shape as the rune that appeared on Raven's body on Christmas. Dick pulled up a current feed, revealing the area where the flames were, now lying in ruin. The only thing left standing amongst the rubble was the old library in question.
"Well, ready or now, I suppose." Constantine smirked, patting Peter and Dick on their shoulders. "Come on, children. Let's go kill a father."
They both deadpanned to each other, then followed behind, shaking their heads. Dick quickly pulled out his communicator as they ran down the halls.
"Titans! I think we've found where we're gonna find Raven! Suit up and meet me at the old library!" He ordered.
After that, the four of them, promptly left the tower and headed into town, sifting through the whole city blocks left in ruin, until they stood in front of the old library.