Book Quiz

Gordanus said:

Any hints? (You don't need to guess them all to be entered into the competition, just save any answers you have already)

Gravediggers and the Up and Down Arrows are what have me stumped.

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Gordanus said:

I know there are a lot of clever clogs - ahem, I mean, erudite people - here, so see how you get on with this:

http://caboodle.nationalbooktokens.com/hiddenbooks/default.aspx?competition=10

Got 17, stuck for the last three.

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