At the end of Five Children and It, the five children promised not to ask the Psammead for another wish as long as they lived, but they expressed a half wish to see it again some time. They find 'it' again in a pet shop in Camden Town, and their magic adventures start over again. 'It' leads them to a magic amulet - half of it actually - which they use to try and find the other half. It takes them back to ancient Egypt and Babylon. The Queen of Babylon visits them in London, bringing all her ancient customs with her - which is awkward. They visit the lost continent of Atlantis. They see Julius Caesar in the flesh, but none of these adventures run smoothly, and if they forget the 'word of power' or lose the amulet, what would happen to them?

In this conclusion to the Psammead Trilogy, Cyril, Anthea, Robert, and Jane are reunited with the cantankerous Sand-fairy. While the old creature can’t grant them wishes anymore, it points them towards an old Egyptian amulet that can grant their hearts’ desire—in this case the return of their parents and baby brother. While their amulet is only half of a whole, it still acts as a time portal which they use to visit locales like Ancient Egypt, Babylon, Atlantis, and even a utopian future in search of the missing other half.

Perhaps one of E. Nesbit’s most personal works, The Story of the Amulet benefits from her interest in the ancient world, particularly Egypt. The titular amulet is shaped after the tyet, an Egyptian symbol also known as the “knot of Isis.” Likewise, the inscription at the back of the amulet is written in authentic Egyptian hieroglyphs.

The children encounter memorable characters during their adventures, chief among them the Queen of Babylon, who causes quite a stir when she later pays them a call in their contemporary London. When the visiting Queen witnesses the squalid living conditions of the London working class, she’s amazed at how poorly they’re treated compared to the slaves of her own Babylon.