These drawings, plans and documents by Hitler's architect do not readily yield their darker secrets. At first glance, and to the uninitiated they appear to be only a set of megalomanic plans for the restructuring of Berlin. 

The Berlin Plans (Berlin Project or Berlin File)
Author/Architect: Albert Speer
Written/Drawn: 1933-1945
Language: German
Study Time: 1d4 weeks to skim, 3d8 weeks to study and comprehend.
Sanity Loss: Initially 0/1, 2/1d6 if fully understood (Cthulhu Mythos skill check at x3 and Cartography skill check at x1)
Cthulhu Mythos: +3 percentiles
Skill Checks Earned: Cartography and Mathematics
Spells: None as such (Keeper decides on the effects of actually completing the project)

These drawings, plans and documents by Hitler's architect do not readily yield their darker secrets. At first glance, and to the uninitiated they appear to be only a set of megalomanic plans for the restructuring of Berlin. The level of detail is staggering, as would be expected from a workaholic. The drafts of individual buildings appear slightly unsettling and cold, but not to a devastating degree.
Combined with the lay-out of streets, S- and U-bahn, power-lines, parks and so on, the significance of the project slowly grows much larger than the sum of its parts.

To realise the implications of this, the reader needs to have at least a little Cthulhu Mythos knowledge and a good portion of expertise in engineering or architecture. If not, the subtle hints of other-worldly geometry, the choice of exotic materials and the odd combinations of colour, shape, texture and symbols will be lost on the reader.


The Nüremberg Plans
Author/Architect: Albert Speer
Written/Drawn: 1932-1934
Language: German
Study Time: 2d6 days to skim, 3d10 days to study and comprehend.
Sanity Loss: On their own 0, adds 2 points to the loss incurred by the Berlin Plans if these are studied and understood
Cthulhu Mythos: +0 percentiles (+1 if studied with the Berlin Plans)
Skill Checks Earned: None
Spells: None

Plans, drawings, documents and sketches for the parade grounds and Nazi Party headquarters in Nüremberg. If studied in conjunction with the Berlin Plans, certain systematic similarities become more apparent than if either set of plans are studied on their own.


The Nightmare Conduit
Maker: Unknown
Manufactured: Early 19th century
Language: N/A
Study Time: Special
Sanity Loss: 1 per night for 1d6+1 nights per use
Cthulhu Mythos: 1d3 percentiles per use
Skill Checks Earned: None (possibly some Dreamlands-related)
Spells: Keeper's choice

Not a tome per se, but rather a twisted version of the classical Ojibwe Dreamcatcher. This item is used like any other dreamcatcher: it is suspended over the user's bed and influences his/her dreams. However, this dreamcatcher snares 'normal' dreams and filters through only dream-transmitted Mythos knowledge from various sources...

Each use of the Conduit lasts 1d6+1 nights, continuing even if the device is removed. Should an unwary user destroy the item before the current session ends the 'nightmares' continue indefinitely, driving the helpless victim insane within a matter of months.

The Conduit only imparts knowledge of creatures and entities relevant or related to North America. This means that creatures and concepts such as K'n-yan, Wendigo and the Mi-Go, as well as others, are likely to be presented, all at the Keeper's discretion. Spell knowledge imparted by this device is also relegated to Keeper fiat.