Browne offers that rarity: a sequel more polished and engrossing than its predecessor. Warriors of Alavna introduced Dan and Ursula, drawn through a yellow fog into Roman England. Once again, they enter the mist to search for their homes and families only to arrive in fifth-century Britain, where the Saxons are attempting to conquer the Roman and Celtic populations. In the Britain of the historical King Arthur, Dan and Ursula have changed; they have lost some powers and have acquired others. Their adjustment to the changes provides interesting insights into the protagonists’ true characters and the nature of their friendship. Browne skillfully integrates details from the first adventure into this story as plot events require. Like the first installment, this is a page-turner that will leave readers panting for the next in an exciting young adult fantasy series. (Fiction. 12-15)