BEYOND THE PORTAL Milo's ghostly buddy, Mister Lewis, appears in the town's ancient castle, but he's not alone. He's in trouble and needs Milo's help. Things get very complicated when Milo's teacher, Miss Lee, accidentally wakes some raging chieftains from long ago. And then she disappears. Mister Lewis takes Milo and Shane through the castle time portal ... into a MILO ADVENTURE.

Part of the The Milo Adventures series.