ilulissat : a common tourist destination in greenland , located along the relatively mild western coast peary land : a dessert region in the far northeast of greenland iceland island : the native name of iceland reykjavik : the capital of iceland , also known as reykjavkurborg vatnajkull : icelands most famous glacier , and the largest in europe seyisfjrur : a town in eastern iceland laugardalur : a park famous for its in town hot springs , located east of city center in reykjavik ireland ire : the native name of ireland dublin : the capital of ireland , also known as baile tha cliath dun laoghaire : a large marina outside of dublin donegal : a city and a county on the far northwestern edge of ireland alphabetical list of characters ariel zeitman : a support engineer for ullow who struggles with her memories of the future baldur hkonarson : an icelandic investor who heads the company d4 and is one of ariels three clients brendan : an ullow programmer who handles cillians requests for new software cillian mcgrane : irish heir to a pharmaceutical manufacturing conglomerate and one of ariels three clients eoin finn : ariels boss fergus : an ullow programmer just out of university who handles mikkels requests for new software geirs : baldurs head of security gra : d4 board member hulda : baldurs personal assistant jake : head ullow programmer for d4 lara : cillians ex-wife mikkel nygaard : a greenlandic investor , and one of ariels three clients mister mcgrane : cillians father , a man whose condition is usually barely conscious murna : nells creation , a fake irish mystic from donegal nell gallagher : cillians friend , and an actress from donegal oskar : baldurs younger brother doyle : cillians fathers financial advisor ronan : an ullow programmer just out of university who handles mikkels requests for new software siarnaq : a kalaallit man who straddles two worlds and is plagued by visions of the far future .