What to see: Lyn Gardner's theatre tips

The Hunchback of Notre Dame prowls Selby Abbey in Yorkshire, Action Hero stage new work in Warwick, and the curtain rises on The Magistrate in London London New shows this week include Arthur Wing Pinero's The Magistrate, previewing at the National Theatre, and Sleepwork Collective's much-admired As the Flames Rose We Danced to the Sirens, the Sirens at the Pit. Also at the Barbican, it's your...