A Sacred StormA masterly debut If Bernard Cornwall and George RR Martin had a lovechild, it would look like A Mighty Dawn. I devoured it late into the night, and eagerly await the sequel. Antonia Senior on A Mighty Dawn Forged in fire. Bound by honour. Haunted by loss. 8th Century Sweden: Erlan Aurvandil, a Viking outlander, has pledged his sword to Sviggar Ivarsson, King of the Svears and sworn enemy of the Danish king Harald Wartooth. But Wartooth, hungry for