-The Secret Library Quest for access to The Museum of Tibia Arts - The Extension Site is what they call the Floating Savants spawn.
-There's a door on the third floor that's apart of the Bone Fiddle quest which is part of a mission of MoTA Bursting at the Seams. "Bone Fiddle quest which is part of a mission of MoTA Bursting at the Seams" for Cults of Tibia.
-You'll benefit doing a mixture of the 1st and 2nd floor with a Knight, this is what me and my real lifes did.
-The best set to wear to Floating Savants is fire reduction as the waves hurt! I'd recommend a Firemind Raiment, Falcon Circlet, Magma Legs, Umbral Master Spellbook or an Umbral Spellbook. You can do a Rainbow Necklace but if you don't own it just stick with a Foxtail Amulet at least. I don't think it's necessary to use any rings other than if you want to use a Ring of Healing or Life ring. A Blister ring wouldn't be necessary in this situation as a mage. But you can put a Shining Sun Catcher in your light source slot. Your shoes are definitely up to you! You can wear soft boots or a magic level boot shouldn't make anything difficult like maybe the Pair of Nightmare Boots. Your not tanking so just take this with a grain of salt for when you do get waved it's better to be safe than sorry.
-Furies, Retching Horrors, Floating Savants, Demons, and Hellhounds are on the 1st floor
-Furies, Floating Savants, and Demons are on the 2nd floor and 3rd floor.
The reason 3rd floor to me is troublesome is because of the walls and how it takes forever to grab a wall. It's doable but if your not experienced with the spawn I recommend 1st and 2nd floor which is where we would get the most experience. You can try out the third floor if you want but it can be troublesome. Enjoy!