Cool School

"On a field trip to the art museum, the Cool Schoolers notice that the nose is missing from the Sphinx! Drew Pendous uses his Mighty Pen Ultimate to sketch a time machine, and he and Ella travel back to ancient Egypt to investigate. Drew's evil twin Ray Blank has rewritten history by erasing the nose! It's up to Drew and Ella to stop Ray and set the timeline straight"--OCLC.