The hotly-tipped graphic novel rip-roaring, action-packed new series continues with these titles, full of retro-comic fun.

As the world-famous Robot City Express train sets off to break the cross-country speed record amid cheers and celebrations, little do the passengers know that murder is on the menu! Can conductor Harrison glean the truth from a host of larger-than-life characters and find the crook before the train reaches its final destination? This playful pastiche of the detective-fiction genre is just the ticket for reluctant readers.