EXIT Puzzle Game: Nightfall Manor

The old man was well-known for his eerie tales of the dark castle on the edge of the forest. Recently, he set out on his own to find the shadowy lord of the manor, but he hasn't returned. Fearing the worst, you embark on a quest to find him. You must solve a series of riddles and piece together four jigsaw puzzles to uncover the mystery of Nightfall Manor and save your missing friend...