Fairy Tail Volume 6 by Hiro Mashima
The big conflict between Gray and Lyon is resolved along with the defeat of the no-longer-ice-encased demon Deliora. Even all that action and excitement still doesn't resolve the Galuna Islanders' problem of turning into demons at night. So the Fairy Tail team winds up trying to destroy the moon anyway! The end of the story does feel a little bit like the writer coming up with anything to get out of the corner into which he'd painted himself, though the time-controlling magic guy is an interesting development. Erza brings back the Fairy Tail wizards, expecting some intense punishment from Master Makarov for going AWOL. When they return to the city of Magnolia, they discover the guild hall has been attacked by the Phantom Lord Guild, leading right into a new big battle. The wayward wizards get off with minimal punishment as they prepare to go to war with Phantom Lord.
This volume again mirrors the anime series, except that two filler episodes (one fun Twilight Zone episode and another with Happy's backstory) are not represented. The manga came first, so the bonus episodes are extra material. The manga does have the usual supplemental material (fan art, explanations of in-jokes and cultural references, and a preview of Volume 7).