The D.J. Dillon Adventure Series is a fun adventure mystery series about 13-year-old D.J. Dillon as he gets into mischief with bears and other animals in California's Sierra Nevada Mountains. Featuring the first 5 books in the series: The Hair-Pulling Bear Dog, The City Bear's Adventures, Dooger, The Grasshopper Hound, The Ghost Dog of Stoney Ridge, and Mad Dog of Lobo Mountain. Five softcover books. Recommended for ages 8 to 12 years.

The City Bear's Adventure by Lee Roddy, in the second book from the D.J. Dillon series, D.J. Dillon rescues a motherless cub, and tries keeping the cub as a pet. As the cub continues to get into mischief, an unusual situation helps resolve the bear and the boy's problem while he learns that letting go of something you love is the hardest part of caring. Paperback, 120 pages. Recommended for ages 8 to 12 years old.