"Die Traumlande" is the german translation of Chaosium's "Dreamlands" (5th edition) for the Cthulhu RPG, with an additional scenario.
This special issue was limited to 950 copies only, each of them hand numbered, and will not be reprinted. As a bonus it does not only contain a (small) map of the Dreamlands and a silver page lining, but also a small booklet with the Cathulhu-rules which allow to play with cats as investigators. Cathulhu was introduced in the "Cthuloide Welten" magazine #1.
Note: On the spine of the book is printed "H.P. Lovecaraft's Traumlande" with an additional -a- (this is a printing error concerning ALL copies apparently).