The Adventures of Sid and Eli (Soft Cover) by Allison Andrews
Meet Sid and Eli, two cousins who are very different, but share a love of adventure. When the best buddies stumble across a mysterious shiny thing in the garden, it leads them to a land-and an adventure-unlike anything they've experienced before. From a giant river made of cheese to fish that wear tennis shoes, the cousins have a lot of exploring to do! The Adventures of Sid and Eli is perfect for kids who love their cousins, are in a multi-racial family or have big imaginations and short attention spans.