The myth of Osiris and Isis comes from Egyptian mythology. They were a couple in love. Their brother, Set, usurped Osiris' throne by cutting Osiris up into 14 pieces and scattered them all over the world. Isis gathered the pieces in order to have a son posthumously with Osiris. This child's name was Horus.
You must find this cache in order to find the grand finale of this series, Horus. You will need a special tool to open this cache. You will find what you need hanging from the opposite side of the tree on a low branch. It is the same kind of tool you would use to open a can of paint.
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