Detective Jack and Deputy Poco Loco are exploring the sights of London when they crash into a new case Riddling rats, meddlesome bats, and six missing ravens! The Dog Detectives are cycling through the busy streets of London when they crash into a new case: the guardians of the city, six black ravens, are missing from the Tower of London. With the help of the rat riddler, the Dog Detectives must solve the riddles and find the ravens, before it s too late! The team searches amongst well known landmarks, such as Buckingham Palace, St. Paul's Cathedral, Trafalgar Square, and Big Ben. Finally the last raven is found in the only place they forgot...The Tower of London! London is doomed! The guardians of thecity, six black ravens, have gone missing from the Tower of London. The DogDetectives must search the streets of London and find the ravens before it istoo late! 伦敦悬案！城市的守护者，六只乌鸦，从伦敦塔失踪了。小狗神探必须抓紧时间搜索伦敦街头，尽快找到他们！