The Slave Pens Walkthrough
The path to the first boss is pretty straight forward. You will enter a room with a group on the left and stairs on the right. The first boss Mennu the Betrayer paths up and down these stairs. I personally prefer to take out the left group and pull him into that corner. In my experience he will NOT aggro the Naga at the bottom of the stairs when you pull him so I would recommend taking him out first. NOTE: Running under the stairs to check out what is in the corner WILL aggro Mennu.
Mennu the BetrayerMennu is a very simple boss as far as strategy is concerned. The tank pulls him into the corner and the rest of the group gets out of range of the Nova Totems. Have one person in the group designated to Totem duty (Fireblast, Moonfire, whatever) as these totems have a few hundred HP and are very easily killed. Without totems he is just a MOB with a lot of HP and can be easily burned down by a competent group. I want to emphazize again, kill the healing totems INSTANTLY.
On the way to Rockmarr you will come to a bridge where you can look down and see the boss. I have not attempted this BUT I assume that jumping down is a REALLY bad idea. You will come to a room where you have to jump down into the water and swim forward to get back on land. If you jump into the middle it is deep enough where you will not take any damage. Do NOT allow your priest to Levitate off the bridge because he will float right into some Naga pats and chances are that you will grab all three of them.
Rokmar The CracklerRokmar is another pretty straight forward boss. Your tank can grab him and you can fight him easily in his little cave. Besides being a standard Tank and DPS type boss he does have a few abilities of note. He will shoot AoE Frostbolts at the party that do a nice little bit of damage.
DPS classes can bandage or you can have a secondary healer spot heal the DPSers because your main healer is going to have to give 100% attention to the tank. Rokmar has a Grevious Wound attack that does a large amount of damage over time to the recipient and the only way to remove it is to heal the target to full. This attack is the reason that the main healer has to focus 100% attention on the Main Tank or anyone else receiving a grievous wound because they will drop fast.