. "Previous"@en . . . "Book #"@en . "52.0"^^ . "High Time for Heroes is the 51st book in the Magic Tree House Book Series."@en . . "2016-01-05"^^ . "Quartet"@en . "Next"@en . "200"^^ . . "High Time for Heroes"@en . "Egypt"@en . . . "Publication date"@en . "1850.0"^^ . "Time setting"@en . . . "Place setting"@en . "High Time for Heroes is the 51st book in the Magic Tree House Book Series."@en . . .