The Knight of the Realm:
Good: 40 Strokes
Neutral and Evil: no stroking
(For Good alignment only)
The Knight of the Realm is giving you a quest - if you defeat the 4 Champions of Humans you will receive a reward - Potion of Clearance
Potion of Clearance - you can use that potion at any time - it will give you the power to half the strokes on the page, but remember when you start to drink you need to drink all 3 charges of the potion within 1 realm, otherwise the charges left in the bottle will be lost.
Be smart and choose the realm well for using the Potion of Clearance, if you manage to acquire it of course.