Merging two of the ultimate pastimes – books and puzzles – the Codex Silenda has to be physically solved in order to read it. These aren’t simple word games and math problems, but rather deviously complicated mechanical puzzles crafted from laser-cut wood that are embedded within each part of this 5-page book. The solution to each puzzle physically unlocks the next page. As the reader moves through the book a short story is also revealed, etched on pages opposite the puzzles. The Codex Silenda was created by industrial designer Brady Whitney who is currently funding the it as project on Kickstarter. At the moment it looks like all funding tiers involving the book have filled, quadrupling their funding goals, but maybe they’ll add additional levels soon.