Mercury Retrograde A Dark Alchemy Novel #2 Laura Bickle On-Sale 10/27/2015 Geologist Petra Dee and the citizens of Temperance, Wyoming come up against a venomous enemy, not to mention a biker gang that’s hell on wheels, in the second book in Laura Bickle’s Dark Alchemy series. Something venomous has come to Temperance… It’s been two