When he uncovers a mysterious metal object while digging in the front yard, Wishbone imagines himself as Professor Otto Lidenbrock who attempts to discover the center of the earth by leading an expedition into the crater of an Icelandic volcano.

A retelling of Mary Shelly's story of a monster assembled by a scientist from parts of dead bodies develops a mind of his own as he learns to loathe himself and hate his creator. Throughout the book, Wishbone explains some parts of the text.

As he and Joe try to get to the eight-grade basketball game in time, Wishbone the dog imagines himself as Robinson Crusoe, the sole survivor of a shipwreck who lived on a deserted island for nearly thirty years.

As trouble starts to brew behind the scenes, Wishbone and his friends begin to suspect someone is trying to destroy the middle school play.