Grimm looked up hearing the noises. He punched one of the guards one more time snapping their neck, and eating their soul. Then dropped them to the floor as his tiny troupe of zombies attacked their once allies. 
"That is most definitely not good," Grimm said.
He checked his locator, and took off running. If the floor was about to collapse. Then he most definitely needed to get his scythe. As much as he boasted. A whole building landing on it. Would most definitely destroy it. He knew he wouldn't be able to get far with it. More then likely just up a floor. As the walls were thick, and he wasn't strong enough yet for far portal travel. He slid at a large lab, and kicked the door in. He walked into the room, and heard clattering. He smirked as he grabbed his scythe. He turned on the scientist slicing them in half. Part of their body appearing behind him. He'd created a tiny portal inside their body.