At present the series consists of eight books: The story initially deals with the characters of Jonathan Thomas Meriweather, referred to by the locals as Jon-Tom, when he is unwillingly pulled into a fantasy world by the turtle wizard Clothahump.
Having been, at the moment of his transportation, high on cannabis, Jon-Tom initially thinks it is all a dream brought on by the drugs.
The world of Spellsinger is largely inhabited by animals that are similar to those found on Earth, but are anthropomorphic: generally bipedal, they are intelligent, able to wear clothing and handle tools, generally closer to human-sized than their Earth counterparts, and are capable of speech.
The world is not portrayed as an idyllic place—slavery exists, many inhabitants are at times coarse and crudely spoken, and the intense smells at first assault the protagonist.
The inhabitants are highly varied—Jon-Tom's friends include the oversexed smooth talking foul-mouthed otter Mudge and his eventual wife Weegee, Caz the smartly dressed polite-spoken rabbit, the turtle Clothahump and his alcoholic assistant Sorbl, and enemies include a ruthless pirate parrot.
His main advantage is that he discovers he is able to wield the power of a spellsinger, a mage who can use songs to cast spells.
Mudge is an otter who appears to be an anti-hero in the series due to him being a womanizer, a thief, an alcoholic and a gambler.
Wants to be a spellsinger but his singing is horrible, to the point he accidentally summons evil spirits into the house constantly.
Squill and Neena are tough teenagers who take after Mudge very closely and are Buncan's closest friends.
Falameezar-aziz-Sulmonmee A Marxist dragon originally enlisted to aid Jon-Tom and the others get to Polastrindu after a close encounter where they were nearly eaten.
Extremely polite, even to the point of apologizing to enemies during a fight, Caz is as adept at manipulating words as cards, and often serves as the group's diplomat during his appearances in Books One and Two.
Clothahump has the means to transform him into a more pleasing form, but ultimately it is his friendship with Jon-Tom that sees his dreams realized... though not in a way anyone expected.
A tragic incident in the past caused him to lose all emotions making him extremely stoic, though he has a few rare non-stoic moments.
Teyva A winged horse in book six whom due to a traumatic almost fatal childhood accident is afraid of flying.
Gragelouth A sloth merchant from book seven, who aspires to find treasure, inspiring Jon-Tom's son and Mudge's kids to tag along.
Caz the Thranx A dimension hopping alien, in book eight crossing over from Foster's other series, The Humanx Commonwealth The Princesses From book eight, six princesses, a Mongoose, a Human, a Lynx, an anteater, a gorilla and an otter, that Jon-Tom and Mudge rescued from a bear baron who was keeping them captive.
Vincero Productions has optioned the series for potential filming with a screenplay being written by Alan Dean Foster.