You will arrive in a large square room with 4 glooth generators away from the wall at each corner. A few seconds after entering, there will be a few waves of Glooth Golems before the final boss, Professor Maxxen, spawns.
The 4 generators on each corner will become Glooth-Generators after a certain period of time. The south-west will spawn some time after Professor Maxxen spawns; the south-east will spawn 35 seconds after the first spawns, the north-east will spawn 30 seconds after the second spawns, and the north-west will spawn 25 seconds after the third spawns. You must plan ahead of time how to deal with them. As soon as the Glooth-Generators spawn, and a player is around them, they will announce THE GLOOTH GENERATOR CHARGES UP FOR A LETHAL EXPLOSION; 14–15 seconds later, if the Glooth-Generators is still alive, 4 Energy Pulses will spawn at the generator locations and explode immediately after (The fully charged generator explodes in a blast!), dealing a massive amount of energy damage (5600) to everyone in a 6 squares radius before also disappearing.
The recommended strategy to deal with the Glooth-Generators is have the whole team attack it as soon as it spawns. Despite of that, all players should be prepared to reduce the 5600 damage and absorb the remaining using Energy protection equipment and Magic Shield, for example.
Note: The Glooth-Generators do not activate their "charging up" phase if players are not around them. This can be used as a strategy if the whole team stays at the southern side of the room, but it can also be very dangerous since if one player gets into an active Glooth-Generator sight it will immediately summon the Energy Pulses which in turn will explode.
Professor Maxxen will summon 2 Walkers, and has 3 accomplices fight alongside him: Glooth Masher, Glooth Slasher, Glooth Trasher (not summons). During the fight, Professor Maxxen will be teleported to a different part of the room a few times.
Source- https://tibia.fandom.com/wiki/Hero_of_Rathleton_Quest