He was biting at his lower lip, and his eyebrows were drawn down over his eyes as though he were cogitating upon some academic problem. He knew that no one could see him, for by now the smoke was all but opaque, but he was watching himself. He could see that the position of his arms, and the whole attitude of his body was exaggerated and stiffened. He discovered that his fingers were splayed out in a histrionic gesture of alarm. It was for him to control his members before he could hope to organize the activities in the smoke-filled room. And so he watched and waited for the moment to assert himself, and as he watched he found himself struggling. There was blood on his tongue. He had bitten his wrist. His hands were now grappling with one another and it seemed an eternity before the fingers ceased their deadly, interlocked and fratricidal strangling. Yet his panic could have taken no longer than a few moments, for the echo of Irma’s scream was still in his ears when he began to loosen his hands.

Meanwhile Prunesquallor had reached his sister’s side and had found her bridling her body up in preparation for another scream. Prunesquallor, as urbane as ever, had nevertheless something in his fish-like eyes that might almost be described as determination. One glance at his sister was sufficient to make him realize that to attempt to reason with her would be about as fruitful as to try to christianize a vulture. She was on tip-toe and her lungs were expanded when he struck her across her long white face with his long white hand, the pent breath from her lungs issuing from her mouth, ears and nostrils. There was something of shingle in the sound – of shingle dragged seawards on a dark night.

Dragging her across the room swiftly, her heels scraping the floor, he found a chair, after probing around in the smoke with his delicate feet, and sat his sister in it.

‘Irma!’ he shouted into her ear, ‘my humiliating and entirely unfortunate old string of whitewash, sit where you are! Alfred will do the rest. Can you hear me? Be good now! blood of my blood, be good now, damn you!’

Irma sat quite still as though dead, save for a look of profound wonder in her eyes.

Prunesquallor was on the point of making another effort to locate the origin of the smoke when he heard Fuchsia’s voice high above the coughing that by now was a constant background of noise in the library.

‘Dr Prune! Dr Prune! quickly! Quickly, Dr Prune!’