The Bottom of the Sea pack is Downloadable Content available on the PSN. It was released on 8th November 2007 and costs £1.49 to download. The size of the download file is 92MB.
This pack includes four additional sidequests, which augment the original Folklore story. Search the seabed for a mysterious item requested by Damona. Get to the bottom of an accident that takes place in the Endless Corridor. And complete the Lost Thoughts 1 mission started in the Kidnapped folk pack.
The pack also includes an additional Folk to defeat and a special costume for Keats, so download it today and continue your adventures in the nightmarish world of Folkore....