"Why ?" "I find it necessary," he said.
She looked at him.

Her heart was beating very fast.

"Percival, why ?" she said again.
He raised his eyebrows slightly.

"It would be rather difficult for me to explain." "Do you mean you have to go on business ?" she said.
He smiled a little.

"Yes, on business." She turned to the fire with a shiver.