BBC Books The Pythagoras Problem Sets: Star Tales 2.83/ 5 6 votes* TARDIS Wiki Share this page {{ shareFeedback }} Copy link {{ copyFeedback }} Overview Reviews Released Thursday, December 5, 2019 Written by Trevor Baxendale Time Travel Past Locations Crotone Login to track and rate! View Rating Distribution Ratings are from TARDIS Guide members only. Characters Thirteenth Doctor Graham O'Brien Pythagoras Yasmin Khan Ryan Sinclair Where to find The Pythagoras Problem: Star Tales Average. Rating: 27% Collected Unowned ⊖Saved to Wishlist ⊕Save to Wishlist