Will Kennedy Charisma Fade?

The next generation of Kennedys is on the rise, but the legendary age of the Kennedys is possibly over, Peter Canellos, a Kennedy biographer said on "The Early Show" Wednesday.

CBS News consultant Canellos, the editor of "Last Lion: The Fall and Rise of Ted Kennedy," said Ted Kennedy's grandchildren are getting ready to enter public life by working in charitable organizations and possibly getting ready to run for public office. But things won't be the same.

"It's not the end of the Kennedys," Canellos said, "but perhaps the end of the Kennedy myth."

Click here to see that Kennedy myth of Camelot in photos.

Canellos added that the Kennedy family is committed to public service based on the influence of famous family members, such as Ted.

"(Ted's) told them, the children and grandchildren, that the Kennedys mean something more than money. They have to get into public service. … I think with him, that connection to the '60s and to Camelot and to the golden era of the Kennedy family has passed. We'll see more Kennedys, but I don't think they'll exert the same mythic influence that they have so far."

To view more of Canellos interview with "Early Show" co-anchor Maggie Rodriguez, in which he discusses the Kennedy family dynamic, click on the video below: