The Wrigley riddle /
by David A. Kelly ; illustrated by Mark Meyers.
- New York : Random House, c2013.
- 105 p. : ill. ; 21 cm.
- Ballpark mysteries ; 6 .
- Kelly, David A. 1964- (David Andrew), Ballpark mysteries ; 6. .
"A Stepping Stone book."
During a visit to the Chicago Cubs' Wrigley field, cousins Mike and Kate investigate why someone has been tampering with the famous ivy vines growing on the outfield walls. Includes historical note.