Yet the roots were dead. Once the room must have been filled with earth, but now, suspended for the most part in the higher reaches of the chamber, the thread-like extremities clawed impotently in the air. Nor was it enough that Steerpike should find a room so incongruously monopolized, but that every one of these twisting terminals should be hand-painted was even more astonishing. The various main limbs and their wooden tributaries, even down to the minutest rivulet of root, were painted in their own especial colours, so that it appeared as though seven coloured boles had forced their leafless branches through the window, yellow, red and green, violet and pale blue, coral pink and orange. The concentration of effort needed for the execution of this work must have been considerable, let alone the almost superhuman difficulties and vexations that must have resulted from the efforts to establish, among the labyrinthic entanglements of the finer roots, which tendril belonged to which branch, which branch to which limb, and which limb to which trunk, for only after discovering its source could its correct colour be applied.

The idea had been that the birds on entering should choose those roots whose colours most nearly approximated to their own plumage, or if they had preferred it to nest among roots whose hue was complementary to their own.

The work had taken the sisters well over three years, and yet when all had been completed the project for which all this work had been designed had proved to be empty, the Room of Roots a failure, their hopes frozen. From this mortification the twins had never fully recovered. It is true that the room, as a room, gave them pleasure, but that the birds never approached it, let alone settled and nested there, was a festering sore at the back of what minds they had.

Against this nagging disappointment was the positive pride which they felt in having a room of roots at all. And not only the Roots but logically enough the Tree whose branches had once drawn sustenance into its highest twigs, and, long ago, burst forth each April with its emerald jets. It was this Tree that was their chief source of satisfaction, giving them some sense of that distinction which they were now denied.

They turned their eyes from its branches and looked around for Steerpike. He was still not unravelled. ‘Can you assist me, my dear Ladyships?’ he called, peering through a skein of purple fibres.

‘Why don’t you come to this window?’ said Clarice.

‘He can’t find the way,’ said Cora.

‘Can’t he? I don’t see why not,’ said Clarice.

‘Because he can’t,’ said Cora. ‘Go and show him,’