Canadian singer-songwriter Sarah McLachlan is back with her first album  of original music in seven years, "Laws of Illusion," and plans to hit  the road again with other female musicians.McLachlan, recently  divorced and with two young daughters, said she was ready to focus again  on her career and resurrect the Lilith Fair tour, an all-female  traveling concert series she helped found in 1997 which ran for three  consecutive summers.