The Infinity Ring is a series of young adult science fiction adventure novels written by multiple authors, including James Dashner, Lisa McMann, Matt de la Peña, Matthew J. Kirby, and Jennifer A. Nielsen, in a similar fashion to The 39 Clues.
To gain power and influence, a secret society known as the SQ has changed many things about time, so history is dramatically different than ours.
Those changes, or "breaks," have also caused many problems, including increasingly intense natural disasters and civil unrest.
Shortly after that, the SQ storms the compound and Dak, Sera, and Riq escape by using the Infinity Ring and decide to go back in time to fix the changes themselves.
However, they meet a Time Warden of the SQ, and have to escape and find their contact, a butcher named Gloria.
The group believes that they must help the Amancio brothers – Salvador and Raul – complete a mutiny against the cruel captain Christopher Columbus.
[5] Curse of the Ancients, written by Matt de la Peña, is the fourth book in the series.
[6] Dak, Sera and Riq travel back to the time of the Mayans, where they witness the birth of the Hystorians.
The group enters a secret password on their SQuare[clarification needed] and views a pre-recorded video by Brint and Mari that explains that they have to save the writings of Aristotle from the House of Wisdom, a library in the city.
The writing are important in solving the Prime Break, the one that Aristotle discovered and eventually led to the establishment of the Hystorians.
The group tries to find the local Hystorian and get new clothes to blend in, but overhears that the Mongols, lead to Hulagu, are only a few days from the city.
However, Dak, attempting to earn some money to purchase new clothes, tells a story about a time-traveling djinn to the citizens of the city.
The Market Inspector[clarification needed] attempts to seize their money, but they escape due to a rug merchant called Farid.
The Mongols will sack Baghdad in two days, essentially turning it into a ghost town for hundreds of years.
Riq and Abi go to get the Infinity Ring back from the grand vizier, while Dak and Sera try to prevent Baghdad's libraries from falling.
After they meet Farid, who had been visited by Dak's parents, the group rests up and waits for the siege of Baghdad to end.
Back at the House of Wisdom, Riq tells Abi how he messed up his own timeline and may not exist in the present day.
When Dak, Sera, and Tusi meet up with them, the Market Inspector and his guards begin to torch the House of Wisdom.
However, the SQ has tampered and killed everyone on the Lewis and Clark Expedition, which left from Camp Wood (near the city), and prevented settlement of the Louisiana Purchase.
[citation needed] Behind Enemy Lines, written by Jennifer A. Nielsen, is the sixth book in the series.
[12] Finally, Dak, Sera, and Riq go back to the time of the first break in history: the assassination of Alexander the Great and Philip II of Macedon.
[13] Dak, Sera, and Riq have fixed the Great Breaks in history, but the SQ isn't beaten yet.
"[1] io9 expressed excitement and hope that the series would cause more middle school aged kids to become interested in science fiction.