Uncle Fred in the Springtime. (Blandings Castle), Paperback/P. G. Wodehouse

Or as he crisply puts it, 'There are no limits, literally none, to what I can achieve in the springtime.'Even so, his gifts are stretched to the limit when he is urged by Lord Emsworth to save his prize pig, the Empress of Blandings, from the enforced slimming cure of the haughty Duke of Dunstable.