Just follow along the story and theorize who stole the Epoh Diamond. -On the part in which you look for clues, just press space when your magnifying glass is hovering over the clue. -In the neighborhood, click the arrows. Remember the house color!
I felt like making a mystery game, so here you go. Note that "Herlock Sholmes" is basically "Sherlock Holmes" with the H and Sh swapped. Also, the Epoh diamond is inspired by the Hope diamond. Thanks to the dictionary for those big words!