Penulis: Bob Pflugfelder

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“Science Bob” Pflugfelder is an elementary school teacher based in Newton, Massachusetts. Steve Hockensmith writes mysteries in Alameda, California. Their previous collaborations include Nick and Tesla”s High-Voltage Danger Lab, Nick and Tesla”s Robot Army Rampage, and Nick and Tesla”s Secret Agent Gadget Battle.




8 Ebooks oleh Bob Pflugfelder