Yik Yak’s No-See-Um Ray has turned Eco’s apple tree and Daisy invisible. Its antidote, thePeekaboo Ray, has fallen somewhere on Moona Luna. It’s found in the nest of a protective LunarLoon. T.E.D. has to turn himself invisible to retrieve the Peekaboo Ray, and thus return Daisy andEco’s apple tree to visibility.
