Therefore, it had to be something of a similar nature that was available to the people of this world, yet something he hadn't encountered during his time.
Of course, it had to be something related to magic, something that could affect his tech within its bounds. This alarmed Zach who was very reliant on his gadgets to get through all the problems in his life. If his tech could fail at crucial moments, he had to have necessary fail safes in place for such a contingency or he might even end up losing precious people to a group of nobodies.