Neptune Key
From WikiRaider
The Neptune Key is an item used in the Level: St. Francis' Folly from Tomb Raider I.
It will open one slide on the door leading to the Colosseum.
you will find the neptune key in st francis folly behind the Neptune door. the neptune key is in the games tomb raider anniversary and tomb raider 1; and the key comes in two different versions.
