Waylaid

The Waylaid is a mission in Vermintide.

Synopsis
Waylaid is a mission introduced into Vermintide before the release of Vermintide 2 as a finale to the story in Ubersreik. The heroes are attacked by Skaven in the Red Moon Inn itself, and must defend against hordes of Skaven and a Rat Ogre. After defeating the Skaven, the heroes descend into the inn's basement, and then the sewers below the inn. They carve a path through the sewers before they reach a large Skaven device being operated by the Grey Seer defeated in the previous mission of the base game, The White Rat. The heroes are actually defeated, and in somewhat of a cut scene, are dropped through the Skaven portal, with the story to be continued in Vermintide 2.

Tomes and Grimoires
all tomes and grimoires https://youtu.be/pjcFgi1lPCc

Tomes
The first Tome at the start of the sewers: take a left across a small bridge, go into the passage, and there's a crevice under the second bridge.

The second Tome is in Corridors: take left, at the pillar crossing, take a right, then right again, and the Tome is hidden in a basket in the corner.

The third Tome is in the nest: when reaching the flat area with tubes and machinery hanging, hug the left rocks and do a little jump.

Grimoires
The first and only Grimoire of the map can be found up (and not down) the nest's ladder: after climbing up, there is a second ladder on the right, climb up, jump left on the ledge, the Grimoire is sitting there.