no. 1
Into the Spiral (The Spiral Defenders Series: Book One)
Erin Danzer
no. 2
The Spiral Revealed (Spiral Defenders Series: Book Two)
Erin Danzer
no. 2.5
Christmas Around the Spiral (A Spiral Defenders Series Short Story)
Erin Danzer
no. 3
Embrace the Spiral (Spiral Defenders Series: Book Three)
Erin Danzer
no. 4
The Spiral Ascended (Spiral Defenders Series: Book Four)
Erin Danzer