you need to pick the enchanter with the wife, the necromancer master (not disciple), the alchemist with three degrees (in red dress), and the trainer Hermosa.
Just walk up to the green things (totems) and choose them. These are the best choices. Wesson is a charlatan.
About Maxos' book, there is no book until you manage to get inside the Battle Tower itself, after you get Laiken's ring and fight off the bosses.
Once you are inside the tower, then you will find a scroll or piece of paper that is very easy to find in the throne room and it has a cloud of sparkling blue around it.
Careful SPOILERS:
Just take it easy, you only need to choose the four guys, then find the guy that is stranded on a pillar and surrounded by dragon elves, rescue him and he will give u a book, take that book to the 3 candles and activate it there (double click in the Inventory menu), then light the candels, a ghost of Sassan will appear, she will tell you to get her ring, go get it, fight the bosses, then go with Sassan to the entrance to the Battle Tower that is blocked by sizzling energy and it will be opened, you will get into the tower, there use explosives that are in a hidden chamber when your path is blocked by stones, then you will go up, fight a demon, then laiken, then get into the Battle Tower, etc. that is where Maxos' scroll (book) is.
