"Well, there's quite a few different options," Toshiko began, without a moment's pause. After all, defensive spells were something any self-respecting mage should have a good working knowledge of. "The most obvious of these is to use barriers that project a physical 'wall' that can block things from passing through it. Enough power can break something like this, but according to the file there was no sign of any sort of attack. So, it's rather unlikely that any barriers were damaged, if they were present. The same goes for field spells that would achieve a similar effect."

Toshiko paused to take another drag on her cigarette, the window rolled down to let the smoke out as she exhaled.

"There could also be field spells that cause a specific effect on those that enter them," she continued, "The most advanced of these are known as closed spaces, and are effectively a magically enclosed space that affords the one projecting it certain advantages. However, there doesn't seem to have been one in place here. Runes, however, are very likely to have been in place."

Another pause for another drag on the cigarette.

"Runes are basically a way of storing a spell, and then triggering it. They can be inscribed on paper or even carved into a surface, or written with chalk," she added, "Similar methods can be used to create circles that trap intruders or do any number of different things. There were probably wards in place, too, to detect if there was anyone who wasn't permitted to be on the premises."

Toshiko paused for a moment.

"Anything else?"