Now, we’re all going to reread literally every Dickens novel, not to mention J.K. Rowling’s Harry Potter books and, of course, Mary Poppins: “In addition to a vast array of sexual clues and cues, John Bowen has found Dickensian brollies masquerading as ‘weapons and shields . . . birds, cabbages and leaves.’ And whether they’re in the right place or the wrong place (like the umbrella in Quilp’s eulogy), there is some intangible but undeniable facet of umbrellaness that has captured the human imagination for centuries.”