Clocktower Games has just released the third chapter its Casebook interactive mystery series, Casebook Episode 3 – Snake in the Grass. Like its predecessors (Casebook Episode 1 and Casebook Episode II – The Watchers), Episode 3 features unique photorealistic 3D graphics that use footage of real actors and scenery. Purchase Casebook Episode 3, write a review, or talk about it in our forum. You can also pick up Episode 2 for $7.50 and Episode 1 for just $5 at the developer’s site. Episode 0 is still free.