I completely know about guinea pigs
Part of the Charlie and Lola series
Lola is really, really excited about looking after the school guinea pig, Bert.
Lola loves playing with Bert, and she and Charlie even build him his very own guinea-pig run!
But when Bert goes missing, Lola soon discovers that she knows something about Bert that no one else has even thought of . . . A completely special Charlie and Lola story, now available in paperback.