UPDATE: Wally the Green Monster has been found - NBC Sports
A rare glimpse inside Wally's world - The Boston Globe
A rare glimpse inside Wally's world - The Boston Globe
Wally the Green Monster and His Journey Through Red Sox Nation
About Tessie the Green Monster
Wally celebrates his birthday at Fenway
When Wally the Red Sox Mascot Vanished From Boston's Fenway Park
The origin story of Wally the Green Monster - The Athletic
Wally the Green Monster
Wally the Green Monster costume stolen, found running down Bosto
Wally the Green Monster - Wikipedia
Wally the Green Monster
Where's Wally? The Kidnapping of the Red Sox Mascot