On some occasions guidebook entrys are plopping up. These will then lock the character controls for a brief moment. Even when clicking in the top right corner it's a hindrance and can likely get the player killed. As this happened multiple times to me while fighting against hostile creatures I would suggest changing it in a way that it pops up in one corner of the screens (and does not lock the character controls) and remains there until manually clicked. That way the player can decide when they have time to click it.
