Erus asked, "so... should we just use the curse to turn the new guy here into a proper person sized mantis girl or whatever? Then he, or I guess she could use a phone properly and split us apart?"
Cerby started to say "Well that would leave everyone ha- ... ha- ..."
Seeing the rather intense sneezing fit coming, Bug zipped straight up into the sky. "You know, I think I'm good for now!"
Cerby sneezed several more times before shaking her snout about and sniffling. "Should we try to find some masks?"
Erby shrugged. "You've got a big drooly dog snout, it's not gonna cover the whole thing. Also I'm sick of standing all the time, let's just get going."
The four followed their new supernatural senses, eventually leading them to some sort of internet cafe. It sensed like whoever they were after was inside and below them, in a basement presumably, but this late at night, the cafe was clearly closed and locked.
"Should we just come back tomorrow, you think?" Erus asked.
"This seems like it's important enough we really shouldn't wait." Cerby said.
"Right, busting in then!" shouted Erby, before walking up to the glass door and giving it a solid punch. As the glass shattered, all three heads gave a pained yelp and they staggered back, Erby in particular whimpering and clasping her cut up hand.
"Why would you do that!?" Cerby shouted.
"We're a big bad cerberus thing! We should be able to do cool smashy stuff!" Erby replied, plucky sharts of glass out of her furry hand. "And don't act like you wouldn't if you were in charge, we're the same person!"
Erus leaned over to help, grabbing the tail of Cerby's odd partial jacket and using it to help clean and bandage Erby's hand. Meanwhile Bug flew in through the opening, and unlocked the door for the others. Being careful to avoid the broken glass now on the floor, the four made their way into the back room, found a staircase down to the basement, and... spent an embarrassing amount of time getting down between their three torsos and the clumsiness of navigating a staircase with a dog's legs for the first time. In fact, they almost stumbled badly enough to fall, and barely caught themselves from slamming into a wall at the bottom.
As Bug began to follow and ask if they were all right, a black haired punky nerd of a guy simply walked up with a trio of LED covered collars in his hand all linked together with gold chains and thin cables, and started fastening one around the nearest the dog-women's neck. "Oh wow, I hope all my other minions make it this easy!"
"Hey! What are you doing!?" Bug shouted, causing the stranger to look up. "You'll get yours in a sec, get all your heads synced up, one identity, totally loyal- wait, why do you just have one head?"