Blackballed from archaeology on Earth, Gretchen Blake consults for MarsVantage to discover a revolutionary energy source in a remote Martian cave with odd symbols as her sole clue. MarsVantage isn't the only interested party-Interplanetary wants the prize and MarsVantage itself.
Can she navigate a web of bribery, theft, spies, and murder attempts to discern the symbol's meaning and reveal the energy source? Does more await, possibly changing humanity's future?
A 2018 The Wishing Shelf Book Awards Finalist.