Michael Turner's latest FATHOM volume reaches its thrilling conclusion... With the sinister inhabitants of the Red Ocean dispatched thanks to her heroic efforts, Aspen Matthews believes that her problems may finally be over. However, upon returning her companions Colin and Judith home safely above the surface, a far more threatening peril awaits them-the vile, parasitic ceratonotus steiningeri! Brace yourself, because the world-changing epic finale of volume four will alter the future landscape of the FATHOM universe forever!