city of dragons character help

[reecem27]

Ohhh... I have read Dragon Keeper and Dragon haven, so I must've read about Malta then (apart from Tawny Man), but to be honest, I've read SO many books after Dragon Haven while waiting for CoD (including all of A Song of Ice and Fire and Raymond E Feist's Riftware Saga) that I seem to have forgotten her story.

From what I read last night (her first chapter in CoD) I gleaned that she is pregnant to Reyn (who I also can't remember) and is starting a trek up the RW river to Cassarick to oversee some disputes over excavation and treatment of the tattooed people? Her and Reyn seem to have been raised to 'Elderling' status by Tingtalia and I'm assuming, were once reverred in the Pirate Isles, but their 'changing' to become more aesthetically pleasing is a source of envy and discord amongst other Rain Wilders that have changed without the guidance of a dragon.
She has a brother, Selden (who again, I can't remember much of), that is held captive and being traded to the Duke of Chalced for some reason that is not yet clear.

I'm a massive fan of RH's novels and don't want to stop reading CoD just to learn Malta's story in depth so can anyone do a quick summary of Malta's, Reyn's and Selden's relevance to the Liveship traders? (Not concerned about spoilers... it's all about the journey).

Thanks for the warm welcome by the way.