Ruby and Louise are determined to make the most beautiful picture out of leaf rubbings. Roger is keeping Max busy by teaching him how to kick a field goal. The girls get frustrated when Max's football keeps landing on or near their project. But when they just need one more maple leaf to make their project complete, it's Max and his football that come to the rescue.

"Bavaria, 1776. When Albrecht Durer the Much Much Younger's Frog Prints go missing, he knows exactly where to turn for help. Gretel (yes, that Gretel), now thirty-five and still living with her gluttonous brother Hans, is the country's most famous private investigator, and she leaps at the opportunity to travel to cosmopolitan Nuremberg to take on the case. But amid the hubbub of the city's annual sausage festival, Gretel struggles to find any clues...

After a break from adventuring, a series of mysterious events leads Finn and Jake farther from home than they have ever traveled before. When they find themselves face to face with a monstrous evil, Finn and Jake must unite for the adventure of their lifetimes!