The Mysterious Bookshop

Kirby, Matthew J., Island of the Sun: The Dark Gravity Sequence

Perfect for fans of the Percy Jackson and Seven Wonders series, Island of the Sun is the second book in an epic, fast-paced middle grade adventure trilogy by acclaimed author Matthew J. Kirby.

Eleanor and her friends have shut down the mysterious Concentrator in the Arctic, but their mission is far from over. The earth is still spinning out of its orbit and growing colder by the day. Their only chance is to find the other Concentrators embedded around the world and deactivate them before it’s too late.

But doing so won’t be easy. The Global Energy Trust has branded Eleanor, her mother, and their friends international terrorists and is tracking their every move. The G.E.T. will stop at nothing to harness the power of the Concentrators in order to preserve the select few people its leaders deem worthy, and Eleanor is soon forced to ask herself whether it’s worth risking the lives of the entire human race for a slim chance to save it.


We are devoted to all things mysterious, from hard-boiled hardcovers to pulpy paperbacks, suspected signings and whispers around town.

Located at 58 Warren St in New York City, we are open Monday-Saturday from 11am-7pm. 212.587.1011

Want to get a free gift AND be entered into a monthly raffle? Sign up for our newsletter! Click on the tab at the top of the site to learn more!