The Silver Tower
by T J Green
Vivian needs King Arthur's help. Nimue, a powerful witch and priestess who lives on Avalon, has disappeared.
King Arthur, Tom, and his friends set off across the Other to find her, following Nimue's trail to Holloways Meet. But what they find there makes no sense.
Nimue seems to have a quest of her own, one she's deliberately hiding. Arthur is convinced it's about Merlin.