The Sacred Arbor is the home of the Elves in DD2. Here's how you can reach this ... Fight the griffin like normal Obtain Medusa's head and petrify the griffin While you don't need Medusa's head ...

The vault contains the following: Daughter of the Evening (Shield) Decayed Medusa Head Ring of Reassurance 20,000 G In particular, the Daughter of the Evening Shield is a useful item for Fighter ...