The Mystery of the Big Deal
Kyla repairs the ring with a jeweler, and discovers it's a wedding ring - a symbol of a contract. Meanwhile E.B. takes the wampum belt to a Native expert, and learns that it was also a kind of contract. The seal-stamper clue turns out to be a seal of authenticity; it leads Kyla to a violin store, where she gets to examine a real Stradivarius violin worth millions of dollars. The gang realizes that contracts take many forms, but no matter what they look like, they're all about keeping your word.