Let’s see what’s behind door number one. Or how about door number 1000? After blowing our minds last year with the incredible House of Mirrors, Australian installation artists Christian Wagstaff and Keith Courtney are headed back to Melbourne Festival with the fittingly named 1000 Doors. Visitors will choose their own adventure, cutting a path through an endless labyrinth of doors, screens, portals and gateways in the Arts Centre Forecourt. No two people will experience the work in quite the same way once they step across the threshold. While there’s no word yet on what you’ll encounter on the way — hopefully no deathly four-guard, two-door riddle, à la Labyrinth — the artists have hinted to ghosts, time-travelling and “inhabitants past”. We suggest you have your wits about you.