The Black Sun Conspiracy

After their last tangle with eerie physics in the supernatural woodlands of Romania, Nina Gould and Sam Cleave find that their passage home is once more marred by the Order of the Black Sun. With the sudden resurface of their missing colleague, billionaire adventurer Dave Purdue, Sam and Nina are once more running for their lives.

Joining Purdue as fugitives, Sam and Nina are hurled into the sinister world of antique and coveted art pieces, once commissioned by monarchs and painted by masters. Forced on a treasure hunt devised by a seasoned art thief, the three of them find that every step they complete towards obtaining their prize could bring them closer to freedom - or death.