It's recommended that you read or listen to the Pyreans series before Alliance, the thirteenth novel in the Silver Ships series.

The story of the Pyreans is that of a third Earther colony ship, but their story doesn't end with Veklocks, the fourth novel in the Pyreans series. Their story merges with that of the Silver Ships in Alliance, revealing a future that includes descendants of Pyre's characters, who readers enjoy, and our adventuresome present day Omnians of the Silver Ships series.

Author S.H Jucha's suggested reading order for The Silver Ships and Pyreans Series Novel's
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The Silver Ships
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01 The Silver Ships
02 Libre
03 Méridien
04 Haraken
05 Sol
06 Espero
06.5 Allora
07 Celus-5
08 Omnia
09 Vinium
10 Nua'll
11 Artifice
12 Sojourn
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Pyrean
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01 Empaths
02 Messinants
03 Jatouche
04 Veklocks
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The Silver Ships
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13 Alliance
14 SADEs
15 Earthers
16 Talus
17 Elvians
18 Q-Gates
19 Conclave