Have Sword, Will Travel Series

When Odo and Eleanor stumble upon an ancient sword in a river outside their village, something very unexpected happens...the sword starts to talk! Much to Odo's dismay, he discovers that he's awoken a famous enchanted blade called Biter and thus has instantly become a knight. Eleanor would love to become a knight - but she's not the one with the sword. Unearthing Biter is only the start of their troubles; soon boy, girl and sword must depart on a noble quest to save their kingdom from threats - in both human and dragon form.

Odo and Eleanor are excited to be knights. Only...nobody's asking them to go on a quest. So they're stuck at home, using their trusty and talkative swords to defend their village when there's cause for defence. But mostly it's just...waiting for something bigger to come along. That 'something bigger' comes to them in the form of an old man named Edga, a warrior named Hundred and an ancient chant: Dragon, dragon, heed our call.... Come to aid us, one and all.