because there does not seem to be any logical or intellectual way of dealing with the defenses.
Disagree ...
They are "magical" turrets ...
Sussur flower disrupts, any magic ...
Also, unless i remember it incorectly, you are told that Lenore was experimenting with Sussur trees.

(Yup, i just checked, Blurg complains to you that her experiments of Sussur bark took priority, when he offered her place in Society of Brilliance.)
This seems like purely logical and intellectual way of dealing with this.
