You are a librarian, keeping a safe reading environment, being a nexus of references and research, and maintaining books is your highest goal. To achieve this task, you encourage an area that helps others focus and better gather information. School Librarians become adventurers for many reasons, from collecting late fees to finding lost books to transporting tomes long distances to being experts in research.
Speed Reader
At 2nd level, your reading abilities become supernatural! You read twice as fast a normal person and when casting a spell as a ritual out of your wizard spell book, the time it takes to cast that spell is increased by 1 minute instead of 10 minutes.
Hushed Tones
You cannot tell others to be quiet if you are not silent yourself. Also at 2nd level, your footsteps are unnaturally quiet, you have proficiency in the Stealth skill and you may replace the verbal component of a spell with a somatic component instead which is still perceived by others.
Demand Silence
At 6th level, your years of quieting noisy library-goers have given you amazing hearing, you have advantage on Investigation and Perception checks that rely on hearing.
Additionally, you may cast silence once per short rest without expending a spell slot or using concentration.
Librarian magics deal with tomes such as published writings, books, scrolls, and academic papers; media that was created to be read by others. Documents like journals and notes that were created to be mostly used by its writer fall outside your scope of abilities.
Bibiliomancer
Years of remembering organizational systems and which of your library-goers cause a ruckus have given you an amazing hippocampus. At 10th level, a number of times per long rest equal to half your proficiency bonus you may cast a spell in your Wizard spell book that is unprepared following all the other rules for spell casting.
Additionally, as an action, you may repair a tome you are holding back to when it was first created.
Whisper Zone
Also at 10th level, all creatures within 10 feet of you have resistance to thunder damage and may add your Intelligence modifier when they take the Hide action.
Archlibrarian
At 14th level, you gain the follow abilities:
Eyes of the Mastereader. You can read all writing and you know the title and a brief summary of any tome you look at within 15 feet of you.
Checkout Ledger of Fate. Any tome you have touched or you know the title and current owner of, you can locate as if you had cast locate object once per short rest and with an unlimited range. You learn what plane the tome is on if it is not on your plane. You may not use this feature on that specific tome again until you finish a long rest.
Shush of Power. Your shushing powers are mighty! If a creature uses an ability that you can hear like a a Banshee's wail or a spell with a verbal component, you can use your reaction to identify the effect and, if you choose to, have the creature make a Charisma saving throw. The ability does not trigger if the creature fails and the ability or that level of spell cannot be used again for 1 hour. Once a creature has been Shushed, you may not use it again until you finish a short rest.