Last Spire: The Tempest Spire Series

By Rhea Sullivan

The sky was never conquered.

It was locked.

Tempest Spire has fallen. The storm above the academy has broken. But beneath the mountain, the ancient machine that once bound the sky is not dead. It is waking.

Lucian and Isolde have survived the collapse of the old order, but survival is no longer enough. The regulator network is failing, the Tempest Core is stirring, and the storms are beginning to move with a purpose no empire can command. To stop the sky from becoming a weapon again, they must follow the forgotten architecture of the stormwrights into buried towers, broken corridors, and the oldest secret beneath the Spire.

What they discover will change everything they thought they knew about storm riding, power, and freedom.

The academy was never only a school.

It was a lock.

And now that the lock is broken, the sky must decide whether humanity deserves another chance.

Last Spire is the final book in the Tempest Spire series, a storm-forged fantasy about ancient machinery, dangerous institutions, sentient weather, emotional survival, and the cost of letting the sky belong to itself.

• Format: Paperback
• Language: English
• ISBN: B0H18BPLFQ
• ISBN13: 9798196298745
• Release Date: May 2026
• Publisher: Independently published
• Length: 394 Pages
• Weight: 1.16 lbs.
• Dimensions: 9.0" x 0.9" x 6.0"