When you enter the room, you will see Sage Daziz (non-attackable, appears after killing the Monstrous Roc) and she is talking to a "Stone Hive caller" through a portal, telling her that she needs to get a message to Her Majesty and that her daughter has been imprisoned
The "call" malfunctions and the encounter begins. The first pair of mobs spawns and after each set or mob is killed, the next spawns. This is the same as in the Advanced Solo but with different strategies.
These will charge up an energy beam (same as Nexus Core) and they will fire it at whoever they are aggro to. When they fire a row of small golden circles will float in front them indicating they are charging up, get ready to move. Now they plant their feet, lean back and open their hands, you will have about 3 seconds to get behind since they can't turn giving you a chance to get behind. This is a tricky one because if the grp is not stacked and moving together the two Automatons will face opposite directions and one shot everyone in front of them.
This mob will charge up a frontal or 360 degree AOE (called Implosion) that is indicated by a swirling fire moving down and then up before it hits. This is your chance to joust away...but... The charge appears to draw the group in so we were only successful jousting about half of the time. This was less of a problem for me as the tank but it was wiping the heals when they got too close. Obviously this is the time for the group wide AOE prevent. If that is the answer have the tank stones skin every time and tank and spank rotating your group AOEs.