The Sword of Summer (Magnus Chase and the Gods of Asgard, #1)
by Rick Riordan 

5 out of 5 stars

Magnus has been living on the streets ever since his mother died. They say it was an explosion, but Magnus knows she was killed by wolves with glowing eyes. In fact, a lot of strange things have been happening, so when Magnus’ weird uncle tells him that their family is involved with the gods of Norse mythology, a lot of things start to make sense to Magnus. His uncle tells him to find the long-lost Sword of Summer, but a fire giant attacks Boston and Magnus has no idea how to fight a legendary giant even if he could find and retrieve the lost sword.