Because Lucius is never given stats in the Freeport trilogy, I concocted my own for him:
Lucius: Male human, Exp1 (librarian): CR 1/2; Medium-sized humanoid; HD 1d6-1; hp 5; Init +0; Spd 30 ft.; AC 10; Atk -1 melee or +0 ranged; AL NG; SV Fort -1, Ref +0, Will +2; Str 9, Dex 11, Con 8, Int 17, Wis 13, Cha 13; Craft (Bookbinding) +7, Decipher Script +9, Gather Information +5, Knowledge (Arcana) +7, Knowledge (Geography) +9, Knowledge (History) +7, Knowledge (Religion) +7, Profession (Librarian) +5; Skill Focus (Decipher Script), Skill Focus (Knowledge: Geography).
Languages: Common, Dwarf, Elf, Gnome, Halfling, and 3 others chosen by the DM as appropriate to the campaign.
This data and other notes can be found on my GR errata pages:
http://www.geocities.com/thastygliax/grp-errata/
Tim