The Pact (Volume 13) (Buck Danny, 13)

Despite every effort on Lady X's part, Buck and Sonny have survived, and with them the antigens needed to create a defence against the Antarctic virus – a failure that puts the mercenary woman in an extremely precarious position with her employers. When those shadowy figures decide to move their plans to release the virus forward, no matter the cost in human lives, a race against time begins to save millions …