Nintendo hasn’t given us much in the way of new Zelda Wii U content aside from some promotional art and short clips we’ve all no doubt watched a hundred times over; we’ll have to wait until E3 before we get much of anything else. Those of us who’ve hungrily scrutinized the little we’ve been given probably noticed the curious notebook Link has on his person in a number of these promotions. With the mysterious book displayed so prominently in the…