The stakes are higher than ever as Jace races to crack the code of Ravnica's mysterious Implicit Maze Confronted with the mystery of the Implicit Maze and the rumblings of a guild war, planeswalker Jace Beleren tried to retreat from the action. But when his elf friend Emmara Tandris is kidnapped by members of the Cult of Rakdos—a ‘thrill kill’ guild looking to curry favor with more powerful guildmasters—he has no choice but to engage. Jace succeeds in finding Emmara, but the two are now deep into enemy territory, with few options to free themselves. As Jace struggles to get them to safety, he begins to piece together the greater mystery of the Implicit Maze. It's now a race to see who will unlock its secrets.