Squishy Taylor and the Tunnel of Doom

Sita 'Squishy' Taylor is a cheeky, sneaky 11-year-old who lives with her dad and step-family in a very crowded apartment. Luckily for Squishy, their building is huge - and there's always plenty of mysteries to investigate! Like...

1. How can tunnels be both exciting and scary?

2. How do dogs always know who the bad guys are?

3. Why are pinkie-swears so important?

4. Who's storing toxic waste under the park?