In this book in the Bluebonnet Series, our favorite armadillo explores the Ocean Star Museum in Galveston, Texas. On the boardwalk at the Galveston harbor, Bluebonnet meets Red, the knowledgeable brown pelican, who persuades her to follow a class on their tour of the museum. Bluebonnet secretly follows the group and learns about the offshore oil system, life on a drilling rig, and offshore oil history.

Along her journey, Bluebonnet discovers that the museum itself is an old offshore rig, where people lived and drilled beneath the sea for oil. She learns that since its opening as a museum in 1997, the rig has taught kids about products made from petroleum and abandoned platforms that have become reefs. As the museum tour comes to an end, Bluebonnet hops aboard a departing shrimp boat with Red to see some offshore drilling rigs in action. After all, she is always ready for a new adventure!