'Hidden Seas' - composed entirely by Argirò - departs from the more traditional sound of her debut and sees her turning to synths and electronics and the introduction of vocals and lyrics.

Disc 1
1. Beneath the Surface - Maria Chiara Argiro
2. Nautilus - Maria Chiara Argiro
3. Sea Song - Maria Chiara Argiro
4. From One Land to Another - Maria Chiara Argiro
5. The Water Oath - Maria Chiara Argiro
6. To the Sea - Maria Chiara Argiro
7. Watery Universe - Maria Chiara Argiro
8. Starlight - Maria Chiara Argiro
9. Wandering Iceberg - Maria Chiara Argiro
10. Ocean - Maria Chiara Argiro