The three Bear Detectives search for a dinosaur bone that is missing from the Bear Museum.

Making valentines for all their friends, Sister Bear wonders who Brother made a big card for when he doesn't share it with anyone at school.

"Brother and Sister Bear are very excited to be going back to school! But there's one big question on their minds--who will be their new teacher? Why, it's none other than Miz Bearly, known for giving lots of homework, loving pop quizzes, and always looking a bit grouchy. But the cubs soon realize that Miz Bearly can also make learning fun, and if they just give her a chance, they may even find this tough teacher is a big softy at heart"--