April's disappearance in 2012 sparked the biggest missing person search in UK police history.
Lewis was diagnosed with Guillain-Barré syndrome, a serious condition which affects the nerves.
The event will be held along the west Wales coast over the next three days.
Many local people opposed the move, part of a £70,000 savings target for the library service.
A jury clears Det Con Sam Garside of the offence while on a Christmas night out.
History society says there was concern the artwork would obscure Aberaeron's "iconic harbour view".
Jessie, from Cardiff, realised she would go weeks without having one day of not drinking alcohol.
The library will leave the town centre and relocate 650m away to the council's offices.
Three others are arrested on suspicion of assisting an offender after the woman's unexplained death.
