This is a .bic file of a Telthor Wolf (Kesaru) and Telthor Bear (Okku), intended for use as premade SoZ companions.
The intention was for these to be used alongside a Spirit Shaman character, but that isn't a requirement.
I don't know what might happen if you use either of them as your own character in another campaign or equip them with weapons, so just don't do it.
Basically, I've taken the .bic files of a couple premade characters and edited them to give them the appearance and statistics of Telthor.
Kesaru is a level 1 Barbarian with various unique feats based on his nature as a Fey creature and a wolf.
He starts with Tracking, Swift Tracking, Scent, Ghostly Visage, Invisibility, Creature weapon proficiency and specializations, immunity to Poison, Sleep, Disease, Darkvision, Keen Senses, Damage Reduction 8/Cold Iron, and Ghost Warrior.
Okku is mostly the same, but with less Dexterity and more Strength/Constitution, and Toughness instead of Swift Tracking.
To use them, simply extract the two .bic files into your Neverwinter Nights 2/LocalVault folder (either the one in the actual game directory or your Documents, doesn't matter). Then load up a new game in Storm of Zahir, and use the Party Registrar to build your party, and choose Kesaru and/or Okku as extra party members from the list of premade characters.
Optionally included are script files to allow Nature's Avatar to affect Fey creatures, allowing it to be cast on your Telthor companions.
Simply extract the files into your Override directory.
10 - A Masterpiece, Genuinely Groundbreaking 9 - Outstanding, a Must Have 8 - Excellent, Recommended to Anyone 7 - Very Good, Deserves a Look 6 - Good, Qualified Recommendation 5 - Fair, Solid yet Unremarkable 4 - Some Merit, Requires Improvements 3 - Poor Execution, Potential Unrealized 2 - Very Little Appeal 1 - Not Recommended to Anyone