There is a new bundle out with a few games (including Call of Cthulhu: The Wasted Land) plus films, audio and ebooks: http://vodo.net/hplbundle Nice little package and BTA is currently really low at $2.50 to get everything.
Cthulhu Saves the World is well worth $1 on it's own; Call of Cthulhu: The Wasted Land is worth beating the average for. Sherlock Holmes: The Awakening I haven't played; all are on iOS but only offered as PC games in this bundle so you might prefer to check App Store if that's your preferred format. In terms of PC bundling, you might be able to find better values per dollar but if you're a Lovecraft fan the price and content is fair here.