| Spoiler warning!|
This article contains plot details from the latest books.
Greyfell is a male alicorn currently roaming free with Silveny (his mate), as of Neverseen (the book). He is silver with blue-tipped wings. He was previously the only known alicorn in the Lost Cities until Silveny was discovered by Sophie Foster in Book 2, Exile (though at first she thought Silveny was a sasqutach...). He is expecting a baby with Silveny. Greyfell has many horrifying memories which he shared with Sophie; he had to be sedated after he started to rear after Sophie saw his memories.