));

                )
            );

        $tile_mids = array_pluck($this->cards->getCards($tile_ids), 'type_arg');

        $tiles = $this->cards->getCards($tile_ids);
        $tile_mids = array_pluck($tiles, 'type_arg');

            // TODO: move cubes back to player supply
            // TODO: put discs on the solution

            // Move cubes back to player supply; puts discs on solution.
            $color = $this->constants['HEX2COLORNAME'][self::getCurrentPlayerColor()];
            $this->tokens->moveTokens(
                array_pluck($this->tokens->getTokensOfTypeInLocation("cube_{$color}_%"), 'key'),
                "cubes_{$player_id}");
            $locslot_ids = array_pluck($tiles, 'location_arg');
            foreach ($locslot_ids as $i => $locslot_id) {
                $this->tokens->moveToken("disc_{$color}_{$i}", "locslot_{$locslot_id}");
            }
            // Also investigators that have been used go back to the box.
            $used_investigators = $this->tokens->getTokensOfTypeInLocation("pi_{$color}_%", 'agentarea_%');
            if ($used_investigators) {
                $this->tokens->moveTokens(array_pluck($used_investigators, 'key'), 'box');
            }
            self::notifyAllPlayers(
                'placeTokens', '',
                array('tokens' => array_merge(
                    array(),
                    $this->tokens->getTokensOfTypeInLocation("cube_{$color}_%"),
                    $this->tokens->getTokensOfTypeInLocation("disc_{$color}_%"),
                    $this->tokens->getTokensOfTypeInLocation("pi_{$color}_%")
                ))
            );

                // TODO: improve wording

            var placeOfftable = false;

                placeOfftable = true;
            } else if (!$(target_id)) {
                // Also if target_id cannot be found: warn, but treat as 'offtable'.
                console.warn('Node \'' + target_id + '\' not found.' )
                placeOfftable = true;
            }
            if (placeOfftable) {