The latest Mystery Case Files adventure is now available, though it comes with a premium, as the "Collector's Edition" of Dire Grove is now available at Big Fish Games.

The sixth game in the popular casual series continues the trend begun in last year's Return to Ravenhearst of blending hidden object sequences with more traditional adventure gameplay. This time around, Dire Grove also features a live-action backstory, as players must piece together what became of four graduate students who disappeared in a tiny English town during a terrible snowstorm.

Available exclusively at Big Fish, the Collector's Edition features such extras as in-game strategy guide, video outtatkes, and even bonus gameplay. The cost of this version is $19.95, with no coupons or credits applicable and no trial version available.

The standard version of Dire Grove will be available at the Big Fish portal in early December, and usual conditions will apply.

Note: Big Fish Games is an Adventure Gamers affiliate.