Origins of characters whose name contains “Halo”

IssueTitleNotes
22Batman and the OutsidersOrigin of Halo
22/NSBatman and the OutsidersOrigin of Halo
6Secret Origins (3rd Series)Origin of Batman (Bruce Wayne); Origin of Halo (Gabrielle Doe)
6/NSSecret Origins (3rd Series)Origin of Batman (Bruce Wayne); Origin of Halo (Gabrielle Doe)