Unseen Academicals by Terry Pratchett

For many years the game of foot-the-ball has been played in the back alleys of Ankh-Morpork, with teams formed from street communities coming together in sporting comradeship (involving violence and pies, not necessarily in that order). But the game is starting to turn ugly, and in the spirit of maintaining civic order, the Patrician has decided to make the game legitimate, with professionally-organised teams and codified rules. The wizards of Unseen University are invited to form a team and Archchancellor Ridcully enthusiastically agrees, with new staffmember Mr. Nutt proving an invaluable asset. But the old street game isn't going to die peacefully...Unseen Academicals, the thirty-seventh Discworld novel, was published in 2009 and bears a somewhat difficult legacy. It was the first novel in the series to be published after Sir Terry was diagnosed with early-onset Alzheimer's, a mark that would also hang over the remaining four books in the series, with melancholic (and probably…