A muslin packet of crushed kelp, dockwater vinegar, and ground peppermint. Quick to soothe scrapes and sting of salt sores.

A coppery bottle of bitter-sour syrup that seals small wounds and prevents rot. Used to treat cuts from coral or fishhooks.

A bitter, sea-scented vial that neutralizes common venoms. Mixture of crushed swampweed, lime, and a flicker of blue coral ash.

A salt-sweet cordial, bottled in a wax-sealed vial. Restores vital blood and calms throbbing wounds.

A small tin of grey-green salve that smells of brine and lavender. Rubbed on temples to soothe seasickness.

Thick black-blue ink harvested from a rare weed bloom. Used to mark maps or write contracts that fade with immersion in seawater.

A little glass vial with seeds that sprout into a rubbery, salt-resistant vine when planted in wet soil or driftwood.

A canvas roll with mortar and pestle, suturing needles, bandages, and a handful of dried herbs. Cheap but effective.

A handful of coarse, smoky leaf with a salty tang. Not for the faint of heart but cheap and widely consumed aboard freighters.

A roughly torn piece of a larger coastal map showing hidden coves and a scribbled note: 'stones to bury — low tide only.'

A small leather bag dusted with ground pearl and kelp ash. Press to nose to calm panic and focus breathing.