Presents a guide to baseball card prices and provides complete checklists and pricing for more than four thousand sets, from 1909 to the present, and includes front and back photos of each card, with more than a half-million cards priced.
Roger's friend Kenneth uses an unusual sea vehicle of his own design to take them to an underwater cave, where a cache of old loot gathered by the mermaids turns out to contain a lot of very valuable old baseball cards.
When the most valuable baseball card of Elizabeth's collection disappears, her mother's first new date and a suspicious baseball card dealer are likely suspects.
With his ability to travel through time by using baseball cards, Joe goes back to 1947 to meet Jackie Robinson, turning into a black boy in the process.
During a summer of baseball and baseball card trading, eleven-year-old Andy makes discoveries about his father, his grandfather, who played professional baseball, and himself.
