David Solomons

The Psammead is an 'it', an ancient, ill-tempered sand-fairy with a spider-shaped body, bat-like ears, and snail-like eyes. It is grumpy but has the power to grant one wish a day, which must be made before sunset. Five siblings—Cyril, Anthea, Robert, Jane, and infant Hilary—encounter It and experience the highs and lows of frivolous wish-making.

When a struggling publisher discovers his only successful author is blocked, he knows he has to unblock her or he's finished. With her newfound success, she's become too happy and she can't write when she's happy. The only trouble is, the worse he makes her feel, the more he realizes he's in love with her.