Q = Spider Queen (lowest level boss) F = Nine Tails Fox G = Goku S = Double Smasher As for level to kill bosses, it all depends on your gear --- I know many IS4++ players, which have good gear and maxed skills, in a party with 2 healers, whom die multiple times trying to kill Queen. These bosses are not really solo'able (alone ... not in a healer party [period] ! ) unless you have high-end gear. I am HI 12 healer, with maxed skill and okay-to-good gear and I gave-up on the bosses ... for now =(
The fox at ferry can spawn in 1 of 3 different spot, the goku in ruin of KL clan can spawn in 1 of 3 spots, the smasher there can spawn 1 of 4 spots. There are a total 6 queens that can spawn in 11 different spots.
Ahaha, what do you mean? All the spots are in the image. However, there are some variations in the spawning area which would be confusing to draw. So, the idea is to have the initial position of the bosses and study their spawning areas. It also depends on the location where you killed the previous boss. I know all locations of bosses, but for the sake of visualization is better just to mark where the boss is more likely to spawn But, if you know any other location that I am not aware, please let me know