Some of London’s luxury boutique hotels are so tasteful they’re almost invisible, catering to guests who want a blank canvas on which to project their own personalities. And then there’s the Mandrake. Set in a relatively sleepy section of Fitzrovia, it’s nevertheless nothing short of a fantasy world, a moody, atmospheric 34-room boutique hotel surrounding a central courtyard full of hanging jasmine and passionflower. It’s named, after all, for a hallucinogenic root much beloved by occult…
