Viking Series by Marti Talbott

At not quite fifteen, Stefan's father finally let him board the longship Sja Vinna to take part in his first Viking raid. But the battle was not at all what he expected and he found himself alone and stranded in Scotland. Thirteen-year-old Kannak's problem was just as grave. Her father deserted them and the only way to survive, she decided, was to take a husband over her mother's objections. Then suddenly she found herself helping a hated Viking escape... moreAt not quite fifteen, Stefan's father finally let him board the longship Sja Vinna to take part in his first Viking raid. But the battle was not at all what he expected and he found himself alone and stranded in Scotland. Thirteen-year-old Kannak's problem was just as grave. Her father deserted them and the only way to survive, she decided, was to take a husband over her mother's objections. Then suddenly she found herself helping a hated Viking escape. Could Kannak successfully hide a Viking in the middle of a Scottish Clan? And why was someone plotting to kill the clan's beloved laird? less

At fourteen, Catrina MacGreagor was left to care for her nine siblings after her mother passed. She didn't truly mind, for she loved them all dearly, but the work was hard as well as boring, and it left her little time to consider a husband. It was just as well, for she had not yet seen a lad she truly favored. All that was about to change, however, in the form of seven brothers – four of them old enough to marry, and all of them Vikings.

Donaldina’s mother died when she was four, or so her father said. She suspected something was amiss but never knew what, and now that she was old enough, her father was determined to marry her off. Always before, she managed to waylay his wedding attempts, and when Laird Wallace MacGreagor came to buy spices from her clan, she fully intended to avoid it this time too.