At the end of Five Children & It the five children promised not to ask the Psammead for another wish as long as they lived but expressed a half wish to see it again some time They find 'it' again in a pet shop in Camden Town & their magic adventures start over again' It' leads them to a magic amulet
- half of it actually
- which they use it to try & find the other half It takes them back to ancient Egypt & 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 & if they forget the 'word of power' or lose the amulet what in the world will happen to them?