The Complete Research Notes of Douglas Richard Wheatley

The Complete Research Notes of Douglas Richard Wheatley is a large, vaguely useful book full of research about the town of Valewood produced by, as you might guess, Douglas Wheatley. It was destroyed by the Securobot underneath Darkstone Manor.

It bears absolutely no relation to any other research books produced by any other mystery relative figures in any other vaguely similar mystery-themed series. We promise.

About
The book contains mentions of Darkstone Manor, a Dimension Root and a Swapstone. Later on, it is discovered to contain a large map of the catacombs beneath Darkstone Manor, which helps Andrew and Elizabeth to find their way out.

History
It was presumably compiled by Douglas Wheatley some time before his death, and left abandoned in the basement until a falling shelf revealed it to his grandson, Andrew Wheatley. Andrew, with the help of May Winter and Elizabeth Glass, followed the book's information to Darkstone Manor, where they used the maps of the catacombs to find a mysterious chamber owned by Darwin Archimedes.

While trying to use the book to find a way to defeat the Securobot that was attacking them, Andrew and Darwin inadvertently used it as a shield from the robot's laser beams, resulting in its destruction. It now exists as little more than a few shreds of ashes, which Andrew mentions he feels is "symbolic".