Beneath The Limestone

The Beneath The Limestone magazine is a collectible story item found in Cave 10 - Waterfall Cave, near the supply crates in the room with the Cowman and in Cave 5 - Submerged Cave near the Rusty Axe. When the player discovers it, he will first examine it before adding it to the notes section of the survival guide. It seems to be very similar to The Practical Caver, in that it discusses the basics of cave exploration.