Brandon Sanderson has taken the Ice Bucket Challenge! But he won’t let a few ice cubes get in the way of editing. And like Vin Diesel, who used his Ice Bucket Challenge to suggest that people also Plant a Tree for Groot, Sanderson is promoting another charity along with the ALSA: he’s donating additional money to the Cure Alzheimer’s Fund, in Sir Terry Pratchett’s name. Check out the video below!