In this heartwarming adventure, meet inseparable friends Fern and Arno, who share countless joyful moments in their hometown of Swanzey, New Hampshire. When, on one otherwise ordinary morning, playful puggle Fern goes missing, Arno embarks on a new and unexpected quest to find his beloved friend.

Across beautifully illustrated Cheshire County scenes, Arno explores all the places where the two pals love to play, hoping each stop will end in reunion. Will his efforts be enough? Join Arno as he uses his sniffer to solve the mystery in this sweet example of the enduring power of friendship. Young readers and their furry friends will adore following this happy "tail."