"Obscuria is in trouble! Join the Bureau of Mysteries as they puzzle their way out of a Mechanomancer disaster. George and Imp are back, this time alongside the adventurer Lord Periwinkle Tinkerton and his moody assistant, Lexica Quill. Together, they must battle the crafty Mechanomancers, ancient spirits that meld magic and technology to wreak havoc. Fighting mechanical bulls, getting trapped in sewage dungeons with monster worms and confronting overgrown plant monsters, the team faces their biggest challenge yet. And, as always, there are codes to crack and riddles along the way!"