"To see or to hear is to know, but to
do is to understand"
AE: 4th level (I might just give up on this one)
KDD: 8th level (damn difficult!)
JtRH: 8th level (this one is interesting)
TCB: 11th level (this is, by far, the worst level in the entirety of TCB)
TSS: 0th level (it's not out yet, and because of that... well, you get the idea)