premise: Samwell Tarly appears in the A Song of Ice and Fire series book A Clash of Kings.
hypothesis: A Clash of Kings is the second novel in A Song of Ice and Fire , an epic fantasy series by American author George R. R. Martin expected to consist of seven volumes . Samwell Tarly , called Sam , is a fictional character in the A Song of Ice and Fire series of fantasy novels by American author George R. R. Martin , and its television adaptation Game of Thrones . Introduced in 1996 's A Game of Thrones , Sam is the eldest son of Randyll Tarly , from the fictional kingdom of Westeros . He subsequently appeared in Martin 's A Clash of Kings before being a POV character in the later novels .