what I remember is that the book was a large red one. I did have a 2nd book next to the first one but it was a brown book. Thinking about this perhaps each character did have a book that was red, or DK did have 2 red books. Once they open it hides the invetory so I couldn't see. What I did was pick up the book out of inventory and drop it unto the other characters picture. The book was no longer in DK's inventory so I figured it just passed ot the other character.
All I did was click on it to open it. When I did so Alchemy was in red print and the list of potions all in gray. On the other character the print just said you have learned craftsmen ship, blah, blah blah. I didn't pay much attention to it as I thought I already knew what the book was about. I just clicked and saw the description out of the corner of my eye, then poof it was gone.
I haven't assigned any skills yet to my characters. I want to see how far I can go without using any first. When I do assigned skills I will see which one has alchemy and which has craftsmen ship. That should clear up the mystery.