You've stumbled your way into a mysterious mansion and there is a page from a book that is speaking to you. The voice -- that of a character named Titus -- compels you to go further, trying to unlock the mysteries of this place, finding more pieces that may free Titus from his confinement. In order to do so, you'll have to solve a wide variety of puzzles that will challenge every skill and ability that you have. Only by solving them all will you learn more about Titus and his plight, and only then will you truly realize your destiny. Azada awaits you.
If I have to help one more scientist/explorer/professor—relative or not—free himself from the confines of a mystical book, I swear I'm going to punch someone in the face. Seriously, people, I work for a living. I have a family to take care of. I can't spend all of my time finding the red pages or gathering the magical runes or turning x number of matchstick triangles into y number of matchstick triangles by moving at least two matchsticks.
But, here we are again, solving the puzzles of Azada in an attempt to release some Titus fellow from the spell that has trapped him within the confines of the book. Pages from the book are missing, you see, and they can only be replaced by solving a series of brain teasers.
That's your premise, anyway. All you really need to concern yourself with from everything I've said above is "solving a series of brain teasers," as that's what Azada is; over 40 puzzles for you to work your way through. Some will be very familiar (perhaps too familiar), and those that aren't certainly will be by game's end. For although there may be over 40 puzzles in total, there are only around 10 to 15 in style.
Some of the puzzles are nothing more than your basic matching (find the identical butterflies) or memory (turn over the stamps to find the matching pair) games. Remember that old game where you had to jump pegs on a board to remove them until one remains (we always knew it as Hi-Q)? That's in here. So are a few other puzzlers you'll recall from extra credit questions on your math quizzes in high school, and there's even some sudoku. Each of these and others are presented as pages in a book, with about eight pages comprising a chapter. Finish the chapter in the alloted time and you your given a visual puzzle to put together. This puzzle will reveal one more piece in the photo of Titus in his library. Get them all, and you've freed Titus and won the game.