At such times the intruder silently withdrew, and not until the red bow was seen gaily erect upon the gifted brow, did anyone dare address Jo.
She did not think herself a genius by any means, but when the writing fit came on, she gave herself up to it with entire abandon, and led a blissful life, unconscious of want, care, or bad weather, while she sat safe and happy in an imaginary world, full of friends almost as real and dear to her as any in the flesh.

Sleep forsook her eyes, meals stood untasted, day and night were all too short to enjoy the happiness which blessed her only at such times, and made these hours worth living, even if they bore no other fruit.

The devine afflatus usually lasted a week or two, and then she emerged from her 'vortex', hungry, sleepy, cross, or despondent.
She was just recovering from one of these attacks when she was prevailed upon to escort Miss Crocker to a lecture, and in return for her virtue was rewarded with a new idea.

It was a People's Course, the lecture on the Pyramids, and Jo rather wondered at the choice of such a subject for such an audience, but took it for granted that some great social evil would be remedied or some great want supplied by unfolding the glories of the Pharaohs to an audience whose thoughts were busy with the price of coal and flour, and whose lives were spent in trying to solve harder riddles than that of the Sphinx.
They were early, and while Miss Crocker set the heel of her stocking, Jo amused herself by examining the faces of the people who occupied the seat with them.

On her left were two matrons, with massive foreheads and bonnets to match, discussing Women's Rights and making tatting.
Beyond sat a pair of humble lovers, artlessly holding each other by the hand, a somber spinster eating peppermints out of a paper bag, and an old gentleman taking his preparatory nap behind a yellow bandanna.