Leon Weaver, a hereditary witch, is burdened with the task of relocating his late grandmother’s dangerous collection of magical artifacts. When a breakage floods him with magic he can't control, Leon accidentally shrinks his younger brother Ellis to a mere fraction of his size, small enough to fit in the palm of his hand. But Ellis isn’t just a victim of accidental magic, he’s the only one who can help Leon tame his unpredictable powers. In their family, that bond is as binding as marriage. Now, they have a job to finish and Ellis’s size to restore, but not before exploring a few daring, intimate possibilities their size difference unlocks.