Remembering childhood stories of a beautiful but dangerous place called Tunnel's End, a mouse named Nib leaves his dirty, crowded home under a busy subway station and sets out on a long journey, joined by Lola, a mouse he meets along the way.

"Twelve-year-old Reggie is still grieving the passing of his father when a strange man promises to reunite the two, if Reggie only follows him deep into an underground subway system where horrors worse than Reggie ever imagined lurk around every corner"-- Provided by publisher.

"After getting separated from his teacher, his classmates, and his trip partner during an outing to the Empire State Building, Pablo, the new kid in school, learns to navigate the New York City subway system as well as his own feelings towards making new friends and living in a big city"--Provided by publisher.-- (Source of description not identified)

"The phantom of the subway: When my sister Thea told me a ghost was haunting New Mouse City's subway tunnels, I had to get the scoop! So I set off with Thea, Trap, and my assistant editor Pinky Pick. But we were all in for the fright of our wee mouse lives...because the ghost turned out to be a CAT! The temple of the ruby of fire: It was my most thrilling adventure yet! My old friend Professor von Volt had discovered the location of the famous Ruby...

A young girl and her mother enjoy a ride uptown on a city subway.

Illustrations and rhythmic text describe the sights and sounds of a subway ride in New York City as a mother and child go uptown, counting their way from one to ten and back again.