He cries, he whistles, he walks, he thumps his fist, he laughs, he groans. He howls and thumps his foot, his eyes bulging from their sockets. Thumps the table harder and glares back at me. The audible loop thumps were addressed in another Mellotron related instrument called a Birotron. The production features strings as well as upbeat jangle and thumps. Sounds described as "volleys" and "thumps" have been recorded during agonistic interactions. Humanity's only hope is Leven Thumps. Several thumps are stacked to enhance signal to noise ratio. Robert Farrell Smith wrote the Leven Thumps series under the pseudonym Obert Skye. It is revealed that Hector Thumps, Leven's grandfather, is the Want. Longings were first introduced in "Leven Thumps and the Eyes of The Want". Only Leven Thumps can save the day. Leven Thumps is a series of children's fantasy novels by Obert Skye. She asks questions, accepting single thumps as yes, two for no. The Leven Thumps series will be followed by another series, a trilogy entitled "Beyond Foo".