"As a matter of fact, I do," Severus said with a chuckle, because he imagined there was no doubt in her mind that he did, even before she asked. "A History of the English-Speaking Peoples is probably his best work, even if it is a bit long -- four volumes. Though I believe there is also an abridged version that manages to condense it all down to one book." Not that he would recommend the abridged version, pithy though it might be.
As her second question, he nodded. "I'm afraid so," he said with a sigh that was not entirely faked. But seeing as he'd just been about to launch into a long and likely boring tale of how Churchill hadn't drawn a salary for most of his early life in politics and had to support himself with his writing, it was probably just as well. No doubt Miss Pond would have been yawning not two sentences in.