Zipha Keatley Snyder's The Egypt Game does possess similes. A simile is a comparison between two typically dissimilar things (using either "like" or "as").
The first simile of the novel is found on page four. Here, the eyes of the Professor are compared to holes. When looking into the eyes of the Professor, people seem to feel as if they are looking into dark and empty holes ("like dark empty holes").
Page seven also contains a simile. Here, April and her friends are looking at a cracked bust of Nefertiti. As the girls look at the statue, "a charge of excitement" passes between them "like a crackle of electricity." The girls' excitement is compared to electricity.
In one last simile, April's purse is compared to a suitcase. Here, "as" creates the comparison between the purse and a suitcase.