One of the items on display was a supposed sample of tektite that had been found in Arizona. It was actually the Thought Core of the Godhead. Wainwright was assigned by her people to guard it.
The Master, intent on uniting the Godhead and the Thought Core, visited the museum every day for several months, trying to figure out how to steal it. The museum was the site of a battle between the Master and Joe Clementi's people. (PROSE: The Duke of Dominoes)