The dreams of Dr Jekyll and Mr Hyde creator Robert Louis Stevenson will be probed at the Ullapool Book Festival.
Author Louise Welsh will deliver the event's lecture, Robert Louis Stevenson and the Theatre of the Brain, looking at how dreams affected his creativity.
Stevenson, who grew up in Edinburgh in the 1800s, is also famous for his novels Treasure Island and Kidnapped.
The festival - dubbed the "most northerly mainland" book event and in its fourth year - runs from 16-18 May.
Ms Welsh's first novel, The Cutting Room, was translated into 19 languages and won international awards including the CWA John Creasey Memorial Dagger and the Saltire First Book Award.
Canadian author Alistair MacLeod will also be flying to the event to give a reading.
He will also lead a writing workshop and visit Ullapool High School.
Other speakers include Alan Spence, organiser of literary festival WORD in Aberdeen, and fiction writers James Robertson, Zoe Strachan and Luke Sutherland.
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