The Drowned City. Tides of Tomorrow, #2

The Drowned City Tides of Tomorrow Book Two by August MaeThey came seeking medicine. They found a world. The towers of Old Bristol rise from the water like the fingers of a buried giant, and in their heights, people have built lives the Estuary Collective never imagined. Vertical gardens cascade from balconies. Bridges span between skyscrapers at dizzying heights. And somewhere in this maze of glass and steel, strangers are watching.
Seren thought she understood engineering. Then she met the Rooftops, who farm the sky. Moss thought they knew what medicine required. Then they saw what the old city preserved. Gull thought he was ready to face his past. He was wrong. And Wren? Wren is trying very hard not to recognise anything. The foraging party has arrived. But earning the trust of people who've survived alone for fifty years won't be easy, especially when the cure they need lies deeper still, in flooded levels where only the Underloft dare to go.
The Estuary Collective is dying. The clock is ticking. And in the drowned city, nothing is given freely. The Drowned City continues the Tides of Tomorrow series, a hopeful climate fiction series for readers who love Becky Chambers, Station Eleven, and City of Ember.