"It will not be easy," Maddy said with a shrug, her accent an odd blend of French-Canadian and her father's heavy Russian intonations. "There are not many substances with which one can be assured of non-lethality as well as immédiat complete incapacitation – there is one such agent I know of, which my father helped create, stockpiled in his homeland, Russia, but even that can be deadly. If you wanted something that took effect within several hours, however..."