請英文高手內進, 解釋一下句子意思

在indirect speech中，若談及的事件是過去發生的事，我們就必須用past perfect tense

所以，才有had recovered
致於having been led to the hoard by a squirrel
這句是participle clause（分詞子句），是帶出原因，如：having read the book, I could answer the questions(因為唸過這本書，所以，我能回答這些問題）

用完成式，也是因為indirect speech 所致

這裏的cache是指收藏物，而hoard則是指收藏物


"Police said on Friday they had recovered a cache of stolen property having been led to the hoard－by a squirrel."
翻譯如下：警方稱，星期五，因一隻松鼠帶領到收藏物處，他們尋回被藏起的贓物。

Police said on Friday they had recovered a cache of stolen property having been led to the hoard－by a squirrel
警方說,在星期五他們找回一個藏有被盜財物的貯藏處, 是被一松鼠帶領所致

cache (noun) = 貯藏物, 隐藏所
a cache of of arms 隱藏的武器

hoard (noun, verb) = 貯藏處, 秘藏
a squirrel’s hoard of nuts 松鼠貯藏的堅果
The squirrel hoards(verb) up nuts for the winter. 松鼠储藏堅果以防冬天

had recovered 是 past perfect tense. 警方說話時間是發生在過去(past),在星期五, 找回被盜財物已經做了, 警方才說話. Recovery of stolen property was completed before the police announcement.. 所以用past perfect tense.

Had been led是 past perfect tense, passive voice.
Stolen property which had been led = Stolen property having been led