A California “home” for rent is shining a light on the US housing crisis – and evoking Harry Potter’s living situation. For $250 a month, an online ad is offering the opportunity to reside in a 3ft by 10ft cubby located under the stairs of a one-bedroom apartment in downtown San Jose. “Fits a cot perfectly,” says the Cragislist ad for the living space. The room under the stairs resembles the one temporarily inhabited by the titular character of the fictional magical world depicted in the Harry Potter book series by JK Rowling. Its appearance on the rental market illustrates