The House with a Clock on its Walls

John Bellairs - paperback

When Lewis Barnavelt, an orphan. comes to stay with his uncle Jonathan, he expects to meet an ordinary person. But he is wrong. Uncle Jonathan and his next-door neighbor, Mrs. Zimmermann, are both magicians! Lewis is thrilled. At first, watchng magic is enough. Then Lewis experiments with magic himself and unknowingly resurrects the former owner of the house: a woman named Selenna Izard. It seems that Selenna and her husband built a timepiece into the walls--a clock that could obliterate humankind. And only the Barnavelts can stop it!

Cuando Lewis Barnavelt, huérfano, viene a quedarse con su tío Jonathan, espera conocer a una persona común y corriente. Pero está equivocado. ¡El tío Jonathan y su vecina de al lado, la señora Zimmermann, son magos! Lewis está emocionado. Al principio, ver magia es suficiente. Luego, Lewis experimenta con magia y, sin saberlo, resucita a la antigua dueña de la casa: una mujer llamada Selenna Izard. Parece que Selenna y su marido construyeron un reloj en las paredes, un reloj que podría destruir a la humanidad. ¡Y sólo los Barnavelt pueden detenerlo!