At level 47-55, we recommend North Lab F12. Mob them to one side, and attack with A.o.E. skills(wk gold). The mobs that spawn there are level 60 Sharks and level 62 Cyclopes. You should be able to kill them. 9.5/10 For North Lab 12th Floor. They mob easily and respawn very quickly. They drop a lot of equips that you can get money from and if you want, change channels for faster exp. Also, a lot of players hunt there and it is easy to get into KS wars.
Another place is the North Hidden Passage in North Lab. It is on the bottom portal In North Lab 13F. Make sure you dont go through the top portal that leads you to the boss. The bottom one is the North Hidden Passage from 51. You can start hunting here since they are level(WonderKing powerleveling) 64 [Meriots], the Merman! 8/10 For North Hidden Passage. EASY to level and mob. They spawn at a decent pace but a bit slower than it does in North Lab 12th floor.
You can go to the Temple Entrance and kill [Stone Heads] which give good amount of exp if you would want to. 4.5/10 For Temple Entrance. Quick Spawn, but impossible to mob unless you are a knight and gets hit for little damage. But you can kill them individually or when they are mobbed by themselves. Just have fun in WonderKing.
