Titan Mage Orion "Rion" Havoc has a reputation to match his name—and that's exactly what the captain of the airship Indigo Gryphon is looking for.

The world of Haven is an adventurer's paradise, brimming with mysterious ruins, ancient artifacts, and dangerous secret powers the Arcane Index's combat archaeologists just can't help but unleash. Fortunately, the Index has a protocol for that, and it involves giant mechs called titans—and their pilots, the titan mages.

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When mousy archaeologist Mery Arkady hires the Indy for an expedition to the lost city of Aeterna, Rion fully expects danger and derring-do. He even expects her to have more secrets than she's letting on.

What he doesn't expect is to be joined by Sanja Grimes—a rough and tumble titan mage … and the one who got away. Nor did he expect their shared academy rival Nepherik Damian Oldershaw to show up, suspiciously interested in Mery's expedition and as vicious as he is vindictive.

Even in an adventure that takes them through monster-infested ruins, sky pirate territories, untamed jungles, and lost cities, their greatest threat might be from their own pasts.

Embark on the adventure of a lifetime with Amazon bestselling author Edie Skye in this brand-new steampunk mecha action-adventure fantasy series.