Summoner

This is an easy-to-read, fun, engaging, fast-paced adventure series following Fletcher, the adopted son of the town's blacksmith, who acquires a scroll from an old Soldier, that allows him to Summon a Demon. Having summoned a Demon he is now eligible to attend a special school for Summoner's, people who have the talent to summon Demons, to learn to use the magic that is inherent with this talent, so that he can use it and his Demon to protect the realm. Unfortunately, Fletcher is a commoner and most of the Summoner's are Nobles, which leads to more than the odd problem for Fletcher.

Unlike other stories I have read, the demons in this one are bonded to the summoner, at which point they become more of a cross between a pet and a friend, which the summoner can control and draw energy from. The demons also come in many varieties with vastly differing abilities and power levels, plus access to the various Demons depends on your graphical location in relation to their world, which is an interesting twist.

These books are well written with a good mixture of characters and plots, that don't always go the way you expect them to, which makes for a taut, tense, action-rich adventure that also weaves in threads of mystery and intrigue, with cliffhanger endings that will have you looking forward to the next book.