Talk about a protean career! The writer Michael Marshall, one might think, already has more than enough strings to his bow: As Michael Marshall Smith, he created some of the most inventive and quirky of cutting-edge science fiction novels; dropping the ‘Smith’ (as Michael Marshall), his bestselling crime fiction is among the most technically adroit and pulse-racing in the field. But here he is with yet another hat on – and as M M Smith, he proves to be just as accomplished a writer for younger readers. The Servants is an absolute spellbinder: a wonderfully engaging yarn that will rivet the attention of both younger readers and those adults lucky enough to pick it up.

11-year-old Mark is well aware – even at this tender age – of the fragility and insecurity of life. After his move from the bustle of London to the more bracing seaside air of Brighton in the winter, he finds he is not enjoying himself. His mother’s illness is distressing, and, worse, he cannot stand his new stepfather. The house he lives in is a strange place, with, what’s more, a strange elderly woman in the basement. The sands of reality are about to shift for the vulnerable Mark, and he may have to rely for help on some people who may not even be real.

Smith’s mastery of the fantasy genre is, thankfully, a skill he has not allowed to wither on the vine, and this is intelligent, allusive writing; both disturbing and evocative. Let’s hope MM/Michael/Marshall/Smith finds time to revisit the genre in between his flesh-creeping adult thrillers.