Maester Lucas is one of the Major Characters that will join your household as an advisor. Maester Lucas has served at the keep since forging his chain in Oldtown. A Maester serves a keep; whichever House or group holds it.
During quests Maester Lucas' advice is normally associated with no alignment.
This page contains detailed information about Maester Lucas as obtained and inferred through quests. It is organized by volume, and the quest(s) where the information was obtained is linked. If the quest was fealty-specific, that is noted as well.
Feel free to add new information as you find it!
If you have not played through all of the volumes, this post will contain spoilers.
Lucas entered the Citadel at a young age. Ever since his chain was forged in Oldtown, he has been tied to your keep. The Maester's Welcome
He reads often and tends to remember the crueler stories. Resounding
When he notifies you of a note delivered in his locked room, he is clearly frightened. Depending on your response, he will either chastise himself for not being as brave and certain as you, or he will feel reassured that you are also afraid. Satisfaction Guaranteed
Lucas is excited when it comes to learning new things or developing new plans. The Maester's Plan, the first of your fealty book quest
Lucas speaks out against executing Groat for treason without proof. Heads or Tails
He offers to aid Septa Eleanor following her kidnapping by an old beau. Eleanor's Return
While drunk at the masquerade and wine festival, he may become so intoxicated that you invite him to bed. If you accept, he breaks his vow of chastity with you but swears he will never let it happen again. Enjoying the Occasion, Getting Along With Lucas
Since he was maester of your holdings before you took over, he served the slavers who occupied the keep. When he arrived, the slavers were already there. He priced men for them. He ate molded bread, and slept on the heart of the great hall. He is much happier under your rule. Maester and Slave
He wants to learn everything he can about the horrible things beyond the Wall. Home, Warm and Safe
He supports an honest historical account of your actions against the Silent Lady. An Honest Account
If you saved them, Lucas tells you that he feels at peace knowing the Jordanes are safe, like he can finally focus on the future and forget the past. A Happy Ending
Lucas opts to return to the Citadel in an attempt to earn his Valyrian link, a feat which may take several years. He says he will feel incomplete and less of a maester until he obtains it. A Weighty Decision
Most maesters are put off by the knowledge of magical arts that is needed to obtain the Valyrian link, but Rona points to Lucas's inquisitive nature as his drive to obtain it. Leaving in the Lurch