He taught the We Reichspiel. He has Law of Logic and Patience. He can devote more time to the project than Mathilde. The Skaven has every reason to cooperate. The job is not extracting secrets, it's learning a language and Max is better suited to it than Mathilde herself.
Also Max is our underling. Skaven, applying Skaven logic, will assume he is out to get us and will try to scheme with him against us aiming to backstab both of us and to regain his freedom. This interaction will be hilarious. Actually, I'll even make a plan with it myself!
[X] Plan Skaven-max
-[X] Overwork: +1.
-[X] MAX: Write-in: Seek to build a lexicon to translate between Khazalid to Queekish. (or just keep him company if that is invalid action for him)
-[X] JOHANN: Learn a skill:
Kung Fu barehanded martial arts.
-[X] Have the EIC assist with Princess Edda's search for weavers.
-[x] DUCK: Work with Panoramia to see if your planned shadow murder tower could also come in handy for the crops in the East Valley.
-[X] Build a Tower of Burning Death (automatic, no action cost, favours and money paid by Belegar)
--[x] Call Algard for 10 favors.
-[X] Investigate the possibility of creating a very bright light source to use the mountain at will [very tricky]
-[X] Investigate the possibility of somehow amplifying the Tower with Dwarven runecraft
-[X] Investigate the possibility of whether it could be fired without you [tricky; if selected and successful, paranoia will be ramped up automatically]
-[X] College Lessons
--[X] Enchanting
---[X] Gambler
--[X] Spell Gacha
-[X] [Serenity] Personal understanding of countering Waaagh magic
-[x] Hire a Priest of Esmerelda to teach the We.
-[X] PENTHOUSE: Have additional rooms excavated underneath your Penthouse: -75gc for 3 rooms.
I'll still approval-vote for these:
[X] Plan Kill it with Shadow v6
[X] Plan Redshirt v5 (Different Max Action)