请问 2020 年山东卷英语 C 篇中从 hence this book 到 drying up of the sea 一句是否不合语法

His visit, however, ended up involving a lot more than that. Hence this book, Chasing the Sea: Lost Among the Ghosts of Empire in Central Asia, which talks about a road trip of road trip from Tashkent to Karakalpakstan, where millions of lives have been destroyed by the slow drying up of the sea. It is the story of an American travelling to a strange land, and of the people he meets on his way: Rustam, his translator, a lovely 24-year-old who picked up his colourful English in California, Oleg and Natasha, his hosts in Tashkent and a string of foreign aid workers.

（出自2003年8月7日《经济学人》）

请问老师这一段落中的我用红色标出来的句子符合语法吗？英语母语者读起来会觉得奇怪吗？