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This article contains plot details from the latest books.
Alicorns are horses with feathered wings and a horn jutting out of their forehead. There are only four currently known in the Elvin world.
They have brown eyes with gold flecks, much like Sophie, who was inserted with alicorn genes. Alicorns can teleport, as well as inflict positive emotions and track thoughts to their exact location. Alicorns come in colours such as grey and white. Their manes are said to look silvery and feel like ice. Their horns looked swirled white and silver. The only two known alicorns are Silveny and Greyfell. In Flashback, Silveny gives birth to a set of twins, Luna and Wynn.
Elves thought they knew about every creature that existed until they found the first alicorn: a male they named Greyfell, who was trained by Silla Heks and her family. They'd been searching for another alicorn for a millennium until Sophie found the first female alicorn, which she named Silveny while attempting to track a sasquatch with her adoptive father Grady, Dex and bodyguard Sandor in Book 2: Exile.
Alicorns are white horses with white wings, white horn, and white mane and tail. Every bit of them sparkle, even their feces, and as Sophie finds out from Silveny's morning sickness, their puke. However, the tips of the wings of male alicorns are blue.
Silveny is the alicorn found by Sophie Foster in Exile. She lived in the Sanctuary and is very important because she is the only female alicorn known to exist in the Elvin world. Much to Sophie's dismay, Keefe gave her the nickname 'Glitter Butt' because of her manure. She now lives in the wild because Sophie set her free to keep her, Greyfell, and her baby safe from the Neverseen.
Is the only known male alicorn. He lives in the Sanctuary and was rehabilitated by the Hekses. Sophie learned through her telepathy that Greyfell had a hard life before he was rehabilitated, seeing his family and friends hunted and killed by humans and ogres alike. He flies with Silveny, going where she does.
In Neverseen, Lodestar, and Nightfall, it is confirmed by Silveny that she is pregnant. In Flashback, Luna and Wynn were prematurely born and had to live in a special troll hive for a period of time in order to fully develop.