He nodded, and then pointed to the hair line fractures he had been building around the casings. "Those are to make sure they fragment at least somewhat. But a single test would be good. Also, you have my memories, we need to start working on a way to activate things without magic, remote detonators is the term for them. I can build transmitters and receivers, though they are crude, but any signal activates the receivers, and the transmitters only send two signals, on or off. I can do Morse Code, but nothing more. And my dabbling didn't extend into radios."<br/><br/>He pulled one of his quarter kegs out of his bag of holding, and carefully placed it in the stone shell, before they withdrew several hundred yards. He pulled out a small, handheld transmitter that would arm the bombs, but it couldn't detonate them, he had to use a magical pulse to activate the primers. He could detonate groups this time, since he had more time to prepare, but it was still far from optimal, and if someone figured out what he was doing, they could easily duplicate it, at least to his thinking. He pushed the highest side button, which primed the first group, in this case one charge, and then pushed the top button, which SHOULD have activated the primer and caused a detonation. Once again, nothing happened, and he shook his head, before magically activating it, and then grabbing Sapphire by the 'V' of her neckline and dragging her down behind the wall before it blew.