Megan Atwood 
Sasquatch Standoff [EPUB ebook] 

Paxton is heartbroken. His best friend, Alice, is moving away in a month, and their summer plans seem dashed. Determined to have one last grand adventure together, Alice and Paxton vow to explore deeper into their nearby forest than ever before. Soon, the pair stumbles across a series of caves that hide a great, big, hairy secret. Alice is over the moon! She wants to strike it rich by capturing a picture of a legendary creature. But Paxton isn’t sure that’s such a good idea. After all, are riches really worth risking a standoff with a sasquatch?!