Add to Cart Quick view Upwind Grand Amplifier Biohazard Games MSRP: Now: $29.99 Was: Prophecy of the Grand Amplifier Campaign and Setting Supplement The Prophecy of the Grand Amplifier is a setting-spanning, Upwind sourcebook and campaign written by Upwind’s authors. The book is... MSRP: Now: $29.99 Was: Add to Cart Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $29.99 Was: Subtotal: Add to Cart