The Dead Gentleman by Matthew Cody (9780375897801)

Description - The Dead Gentleman by Matthew Cody

A many-worlds adventure novel from the acclaimed author of "Powerless"!
"The Dead Gentleman" is a wild ride between parallel New York City timestreams--1901 and today. Eleven-year-old Tommy Learner is a street orphan and an unlikely protege of the Explorers, a secret group dedicated to exploring portals--the hidden doorways to other worlds. But in the basement of an old hotel, his world collides with that of modern-day Jezebel Lemon.
Now, Jezebel and Tommy must thwart the Dead Gentleman, a legendary villain whose last unconquered world is our own planet Earth, a realm where the dead stay dead--for now. Can two kids put an end to this ancient evil and his legions of Grave Walkers?

"From the Hardcover edition."

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