A frightened but friendly Chihuahua is lucky to be alive after a good Samaritan found her cowering beneath a blanket in the dense woods near Spring Pond in Peabody, Mass. and rushed her to the MSPCA-Angell in Jamaica Plain. That good Samaritan, Tom Osborne of Lynn, stumbled across the dog on March 13 while out for an afternoon walk. “She was wrapped in the blanket and just so scared,” said Osborne. “I couldn’t get close to her at first so I sat down on the ground and waited for her to relax.