Other reviews were more positive. Paula Rohrlick's review in Kliatt called Tim "[f]un escapist fantasy", noting that it contains more humour and less horror compared to Enthoven's previous novel The Black Tattoo. Jane Henriksen Baird's review in School Library Journal concluded: "This fun, action-driven, science fiction tale will be snapped up by restless boys who can never find books written just for them."
