Wandering Island Series by Kenji Tsuruta, 鶴田謙二

Mikura Amelia is a free-spirited young woman living alone with her cat, who operates an air delivery service, flying her vintage seaplane to Japan's small island communities located hundreds of miles out into the Pacific. When her beloved grandfather passes away, she discovers he left her an undelivered parcel, addressed to an island that doesn't exist...or does it? To answer the question, Mikura flies off in search of the truth behind the Wandering Island!

The island exists...but the mystery has just begun! The 2017 Eisner-nominated series returns!Mikura Amelia, following her clues and research, sets her floatplane down in the Pacific, waiting for the drifting passage of Electric Island. No sooner does it appear than her GPS goes out...so where is she, and the island, headed? The sun-baked maze of streets and buildings that make up Electric Island is curious and charming.. moreThe island exists...but the mystery has just begun! The 2017 Eisner-nominated series returns!Mikura Amelia, following her clues and research, sets her floatplane down in the Pacific, waiting for the drifting passage of Electric Island. No sooner does it appear than her GPS goes out...so where is she, and the island, headed? The sun-baked maze of streets and buildings that make up Electric Island is curious and charming...which is more than can be said for its sullen inhabitants who will barely communicate with Mikura. Did they fall prey to the same enigma that drew Mikura here...and will she recognize the people from her past when she finds them...? less