Curtis C Chen Books in Order

A spy with access to a private pocket universe is sent on an enforced holiday to Mars. Two deaths aboard his cruise ship draw Kangaroo into an investigation that threatens his cover and fragile interplanetary peace.

Investigating sabotage takes Kangaroo to the Moon with his physician Jessica Chu. When she is arrested for murder and a terrorist attack triggers lockdown, he must clear her name while uncovering secrets connected to their mission.

Secret agent Kangaroo infiltrates a hidden prison floating inside Venus’s poisonous clouds. With another spy missing and a prisoner claiming wrongful confinement, his unusual abilities face a facility designed to conceal its inmates and offer them no hope of escape.