I haven't read the third book in the series, but I'm sure it's excellent.

我还没有读这一系列的第三本，但我确定那一定也是很棒的。

youdao

I was seven when the first book was published, but I didn't start to read them until the third book was out.

当第一本书出来的时候，我七岁，但是等到了第三部出来后我才开始阅读。

youdao

I was seven when the first book was published, but I didn't start to read them until the third book was out.

当第一本书出来的时候，我七岁，但是等到了第三部出来后我才开始阅读。

youdao