NOTE: By accepting Lieutenant Elwyn's quest, Inquisitor Theramir will cease to offer his quest.
Lieutenant Elwyn will be glad that you have decided to side with her. She immediately tells you about a sorcerer from Targonor that once passed through the Retreat before leaving to go observe the new magic that has possessed the Lyceum. His name was Serrin, and wrote a book about all that he observed. Sadly, he never returned with his book. She avises you to go search for the book near the Sorcery building in the lyceum!

You will find the entrance area of the Lyceum surrounded by huge elementals that are all around level 15 4dot mobs. The first building that you see when you enter the Lyceum is the Sorcery Building (It is number 2 on our
Map). The book should be located on the ground, and does indeed look like a book. The book is found in a few different random locations on the northwest side of the building. When you right click it, the book will go into your inventory and disappear off of the ground. If you have more than one person in your group, you will now have to go searching for the book again. It will usually spawn close by in that general location next to the building. Your best bet is to keep running around the perimeter of the northwest part of the building until you see it.
After each member of your group has a book, return to Lieutenant Elwyn, who will be pleased with your progress. (while running back to Arlinora's Retreat you may get attacked by low level kaon entities, you can outrun them with your horse).