The Menier's production of The Invisible Man is all preposterous fun, but the evening really belongs to the other unseen hero, illusionist Paul Kieve, who can make inanimate objects skim through the air, writes Michael Billington
The Hunt for the Scroobious Pip reads like an absurdist version of Aesop – a conference of creatures debate the taxonomy of the Pip, which is neither flesh nor fowl, writes Alfred Hickling