51-year-old Penny Kochel of Robesonia, PA, surrendered today to authorities.
Police say 14-month-old Lenna McEntee was found dead on May 10, 2009, in the 6800 block of Penn Avenue in Lower Heidelberg Township.
An autopsy revealed that the toddler died of morphine poisoning and had passed away while in the care of Kochel.
Police say Kochel admitted to taking morphine while watching her granddaughter.
She is being held in the Berks County prison.