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This article contains plot details from the latest books.
Greyfell is a male alicorn currently roaming free with Silveny (his mate), as of Legacy. His coat is silver with blue-tipped wings. He was previously the only known alicorn in the Lost Cities, living in the Sanctuary for years until Silveny was discovered by Sophie Foster in Exile. Greyfell has many horrifying memories from his past, which he shared with Sophie; They were so traumatizing, he had to be sedated after he began to rear after Sophie saw his memories. As of Flashback, Greyfell is the father of a set of alicorn twins, Luna and Wynn.
In Neverseen it is said that Sliveny transmitted Greyfall and her "playing". She then realizes that that was not playing